12 best d f multimeters

Product description

Fast response, multiple protection, accurate and easy to use.

Acegmet Digital Multimeter is easy and safe to operate and features many different functions for measuring current, voltage,  resistance and continuity, transistor, and diode testing.

Wrong Polarity Alarm: 

1. When the port of the test leads you connected does not match the gear, the screen of the multimeter will display "LEAD" and beep.

2. When the fuse is burned out, adjust the gear to the current level. After connecting to the test leads, the screen of the multimeter will display "LEAD" and beep.

Technical Specifications:

Max display: 9999 counts

Range selection: Automatic & Manual Range

Measurement Speed: 10 times/second(Instant readings)

Overload display: Display OL

Wrong Insert Alarm: Display LEAD

On-off Test: Buzzer

NCV/VFC Function(Inverter Measurement):Yes

Live Line Test :Yes

Data Hold Function:Yes

Low Battery Indication :Yes

Auto Shut-down: 15 minutes

Power Supply: 2 x AA 1.5V Batteries

Safety Class: IEC61010 CAT.600V CAT IV,1000V CAT.III

Range and Accuracy：

AC Current: 99.99mA/600mA±(1.0% + 3);10A (1.5% + 3)

AC Voltage: 999.9mV/9.999V/99.99V± (0.8%+3);750V ± (1.0%+5)

DC Voltage: 999.9mV/9.999V/99.99V/999.9V ± (0.5%+3)

DC Current: 99.99μA/999.9mA/600mA ±(0.8% + 3);10A (1.2% + 3)

Resistance: 999.9Ω/9.999KΩ/99.99KΩ/999.9KΩ/9.999MΩ ± (0.8%+32);99.99MΩ ± (1.2%+5)

Capacitance: 9.999nF±(4.0% + 30); 99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF /99.99mF±(4.0% + 3)

Frequency: 9.999Hz/99.99Hz/999.9Hz/9.999kHz/99.99kHz/999.9kHz/9.999MHz ±(1.0%+3)

Temperature: -4℉-1832℉ / -20℃-1000℃±(1.0%+3)

 

• [ENJOY THE FUN OF MEASUREMENT] Our voltage testers provides two measurement modes, automatic and manual. If you have higher requirements for handling, you can choose manual mode. If you want to easily obtain measurement results with the digital multimeters, you can choose automatic mode. No matter which mode you choose, it will not affect your rapid measurement results. Ten times / second measurement speed allows you to get measurement results in almost real time.
• [TRIPLE SECURITY PROTECTION] Overload protection function: when the access voltage is lower than 250V, the digital voltage meter will automatically prevent burnout during the entire process. Fuse Disconnect function: when the current is too large, the two fuses will immediately blow to protect the motherboard of the digital voltage tester. Wrong Polarity Alarm function: when the gear position and the test leads access port do not match, the volt meter's screen will display "LEAD" and beep.
• [EXTREMELY PRECISE] Electronic loads with frequency changes are non-sine waves. Only true RMS volt meters can measure the correct value. Within 1KHz AC voltage, this non-contact voltage meter tester can accurately measure. Up to 9999 counts provide more accurate readings.
• [TRUE MULTIMETER] This digital multimeter tester covers multiple functions and measurements. Measure the AC / DC voltage, AC / DC current, Ohm, Hz, nF, duty cycle, humidity, diodes, live wire test, circuit continuity, NCV & VFC function, etc. We also have functions that other digital multimeters do not have including temperature, data hold, auto-off.
• [CUSTOMER CARE] We have put a lot of effort into improving your experience. The surface of the digital multimeter is covered with a thick soft rubber protective case to prevent accidental electric shock. The light and stand functions can also help you when you use it. At the same time, we have extended our after-sales service to 18 months.

User questions & answers

Question:	Hi, does have a graphical presentation to make...i.e. an engine relative compression test
Answer:	I don't see how this device could be used to measure engine compression without a second device that has an electrical output that can be measured byh the meter itself. It cannot be used to directly measure compression of an engine.
Question:	How do you change the battery
Answer:	Battery can be replaced after opening the back cover with a screwdriver
Question:	Can I safely run rechargeable battles on this meter
Answer:	yes. but be careful when you choose the battery
Question:	Will this meter test dc as well as ac
Answer:	yes

Product description

Description

FNB48 Multifunctional fast charging protocol detector

1. Integrated USB-A, Micro-USB, Type-C interface, with 1.77-inch high-definition display, using external 16-bit ADC, PD protocol physical chip, real-time monitoring of voltage, current, power, power, capacity, charging protocol during charging, Curve aveform, etc.

2. No need to match the original data cable, you can also directly detect the charger protocol of OPPO, Huawei, OnePlus and other brands.

3. In any interface, by long pressing the return button, the screen can be hibernated, wake up by any operation, and charging at night will not affect sleep.

4. FNB48 uses the differential pressure method to measure the internal resistance of the cable, Use with constant current load, Easily detect the internal resistance of the cable.

Features

Voltage and current curve,real-time detection of voltage and current

Low-speed voltage and current curve

Low speed D+D-curve

Record offline curve

High-speed voltage ripple(AC coupling)

Powerful & Stable performance

Protocol detection Protocol trigger Wave curve

Line resistance measurement Ultra low internal resistance

Driver-free upper computer upgrade

Parameter

USB3.0 high-speed transmission

Monitor voltage: 4~24V

Monitor current: 0~6.5A

Monitor power: 0~156W

Protocol detection

A PPLE 2.4A, QC2.0, QC3.0, PD, Sam-sung AFC, Hua wei FCP, Hua wei SCP, VOOC/WARP, Su perVOOC, MTK-PE

Protocol trigger

QC2.0, QC3.0, Hua wei FCP, Hua wei SCP, Sam sung AFC, PD trigger, VOOC/WARP, SVOOC

• HIGH PRECISION DISPLAY: 5-digit/6-digit display with one-key switching, max resolution 0.00001, real-time monitoring of subtle changes involtage, current and power during charging. It can also detect the weak current when the original Apple data cable is no-load.
• FASTER TRANSMISSION RATE WITH USB 3.0: FNB48 uses USB3.0 interface, 9-pin pin design, compatible with USB2.0, transmission rate is 10 times that of USB2.0, and more energy-saving.
• RECORD MORE DATA: FNB48 can record up to 10 sets of measurement data. It could directly put the calculation formula of battery capacity on the tester, The calculation result is multiplied by 1000 to get the capacity of the battery, and the calculation is more convenient and faster.
• PD E-MARKER, DASH CABLE INSPECTION: FNB48 supports reading the data of E-Marker and DASH cables. After connecting the data cable, it is easy to read the chips of E-Marker and DASH cables. With analog DASH cable and Apple 2.4A acceleration function, it can directly charge and detect voltage and current without the original data cable.
• GRAVITY SENSING SCREEN AUTOMATICALLY FLIPS: The screen OF FNB48 can be flipped freely trough gravity sensing. You can also turn offthe gravity direction recognition, Long press the middle button to realize the screen flip.

User questions & answers

Question:	How do i change the language to english? when i powered it up and pushed the button it didnt go to the menu
Answer:	Long press the button, the language will be displayed after power on. Then to keep pressing and waiting until you turn to English. Thank you.
Question:	Is this meter usb pd 3.0 compatible? it just says pd in the specs with no version listed except for quickcharge
Answer:	Hi, yes, it can support usb pd 3.0. Thank you.
Question:	is ther an ios app for this device
Answer:	I don’t think so.
Question:	What is the difference between the versions: yellow, blue and black
Answer:	The main differences are: -Which types of connectors they have available: USB type A male and Female, mini-USB male and/or Female, USB-C male and/or Female - Unidirectional or Bidirectional voltage/current measurement. - Amount of electrical variables they are able to measure in real time - Direct reading on the device or Bluetooth connection. I recommend to define what type of devices do you want to connect to the device and what type of tests do you want to do, and then select the right device.

• WIDE APPLICATIONS: This AstroAI digital multimeter features 6000 counts auto-ranging for accurate measurement of AC/DC Voltage, Current, Resistance, Continuity, Capacitance, Frequency, Diodes and Temperature. This multimeter is a really useful tool for solving industrial and household electrical issues.
• LED INTELLIGENT JACK: Switch the dial and the LED lights on and the jacks will shine accordingly. Switch the dial to choose the function you need, the corresponding LED light flashes to tell you which jack you should choose. A large LCD backlight display and flashlight on the back ensures easy use in dimly lit places. Stable Kickstand, pen slot on the back.
• MULTIFUNCTION: Features smart functions, Low battery prompt, Data retention, Max/Min data, Auto Power-Off, Auto-Ranging, Backlight and Flashlight. The LCD screen changes to red while detecting live wires, and the backlight turns orange when measuring high voltage.
• NON-CONTACT Safety: This DMM is designed with safety in mind. It features non-contact voltage testing and Live function with sound and light alarm, works for outlets, sockets, terminals, and more in safety.
• SAFETY FIRST: Anti-Burn with a double ceramic fuse and thermistor protection circuit; The fuses can protect the multimeter effectively; There is overload protection on all range. The silicone protective case effectively prevents the machine from damage. 3 Year Warranty provided by AstroAI

User questions & answers

Question:	Once backlite is on how long does it stay on
Answer:	it has a short time out...the meter will shutoff after 15 minutes -no activity. The BACKLIGHT is a toggle on/off
Question:	What is the difference between the older part wh5000a/dm6000ar and this part number m6k0r
Answer:	The new model M6KOR has an NCV function and optimized the design, and it uses 1.5V*2 AA batteries instead of a 9V battery. Please refer to the product detail pages to view more details. Please contact us via Amazon Message with your request. We will be glad and prompt to help you there.
Question:	Hi. What's the range and accuracy of the capacitance measuring of this meter
Answer:	The range of the capacitance is 10nF-100mF. The accuracy of the capacitance is ±(4.0% rdg +5 dgts) between 10nF and 1000μF, the accuracy is ±(5.0% rdg +5 dgts) between 10mF and 100mF. Please contact us via Amazon Message with your request. We will be glad and prompt to help you there.
Question:	Couldnt find this product on the astroai website. can you provide a link to more product model info including the user guide
Answer:	We're sorry that we are updating the information and user manual of this multimeter on our official website/product detail page. Please contact us via Amazon Message with your request. We will be glad and prompt to help you there.

Product features

AstroAI 6000 Counts TRMS Digital Multimeter

The AstroAI M6K0R model Multimeter is designed to be safely and accurately used for a variety of automotive and household electrical problems. The device is a fully automatic TMRS multimeter and measures both alternating and direct currents and voltages. Apart from the above, the device can also measure capacitance, temperatures, diodes, liquid temperatures, and circuit continuity. This all on one multimeter is perfectly used for general electronics as well as electrical troubleshooting

AC/DC Voltage Measurement

Contact the probe to the measured circuit to measure the voltage or current. Read the measurement result on the screen; when measuring AC voltage or AC current, the frequency is displayed on LCD simultaneously.

Live Wire Detection

Live wire testing with the red test lead. The unique function to test the presence of live wires. When it detects the live wire, the multimeter will reflect with a red indicator light and audio alarm.

Continuity Test

How to test whether the circuit is connected. Connect the test leads to two points on the circuit, if the line is connected, the built-in buzzer will sound and the value will be displayed on the LCD screen.

Temperature Measurement

This product is equipped with a K-type thermocouple, touch the end of the thermocouple to the object being measured, read the temperature when the value has settled.

Low Battery Indication

An indication to replace the battery will be given when the battery is low. Easily replace with two AAA batteries.

Auto Shut Off

Automatically shuts down after 15 mins of inactivity for an extended period to save power. Just switch the rotary dial to easily get it working again.

Bright Backlight and Flashlight

The bright backlight enables the readings to be clearly visible on a large LCD screen; even in dimly lit areas and at night, the flashlight is as bright as a little lamp and provides illumination in the dark.

Anti-Burn Dual Fuse Protection

Built-in double fuses protect the multimeter effectively and provides overload protection across all measurement ranges. Double Protection and a high safety level.

Product description

The color-coded LEDs allow you know Voltage on/off. Specifications: Range Selection: Auto Ranging Max Display: 6000 DC Voltage: 600mV~ 600V AC Voltage: 6V~ 600V AC / DC Current: 600uA~ 10A Resistance: 600ohm~60Mohm Capcitance: 9. 999Nf~99. 99mF Frequency: 9. 999Hz~9. 999Mhz Duty cycle: 0. 1%~99. 9% Temperature: -4℉~1832℉(-20℃~1000℃) Battery test: 1. 5V/9V Power Supply: 9V * 1pcs( INCLUDED )More Features ✔Auto LCD Backlight ✔Overload protection ✔Data Hold ✔Diode Test ✔Low Battery indication ✔Auto power off ✔℃/℉ Switachable ✔True RMS ✔Relative Value ✔Continuity Test

• ➤【Accurate Reading & Wider Range】6000 Counts display, sampling time 2-3/sec,so it can accurately measure DC Voltage 600.0mV ~ 600V, AC Voltage 6.000V ~ 600V, AC/DC Current 600μA ~ 10A, Resistance 600 ohm~60M ohm, Capacitance 9.999nF ~ 99.99mF, Temperature -4 ~ 1832 ℉, Frequency 9.999Hz ~9.999MHz, Duty Cycle 0.1%~99.9%, Battery test 1.5V 9V
• ➤【Multifunctional Electrical Meter】We focus on user experience, so developed this multimeter for home use, school, hobbyist. It functions Continuity Beep with Flashlight, Data Hold, Auto Back Light, Auto Shut Down, NCV Test, Relative Value, it can even switch between Manual/Auto Ranging
• ➤【Zeroing for More Accurate Reading】This multimeter can zeroing the reading, so you can get more accurate test result, especially useful for testing micro reading subject. Press “REL”, it will show the relative value testing and zeroing the multimeter
• ➤【9V Battery Included】 It comes with a graphical instruction manual and 9V battery to get you started. It’s Lightweight, portable with multimeter case, protective case, auto shut down to save your battery, which make it a perfect pocket multimeter to carry around.
• ➤【Easy to Use】39C Auto Ranging Digital Multimeter can sense the brightness of the working environment, light up automatically in dark, which saves you trouble to turn on/off all the time. It can also display the environment temp, and test liquid temp with the Temperature Probe(included)

User questions & answers

Question:	What's the difference between bt-39c and bt-39k
Answer:	This Device is for examining various aspects of electrical circuits. If you have a reason to know things such as the conductance of the fluid (ie. to test for corrosion) then I can’t think of any reason why this meter would not be up to the task. Otherwise, no, you cannot test radiator fluid with this.
Question:	Is this meter Audiable
Answer:	No, it does not retract automatically. If you look at the second thumbnail image on the page, you will see that the cord has to be manually wrapped around the bottom.If you wanted to mount it, you might have to double sided adhesive tape, or have another creative way, but there are no designated mounting holes.
Question:	Description says it measures temperature but I see no place to plug in a thermocouple. Does it come with a thermocouple
Answer:	The item is white. Thanks for your feedback regarding the color on the picture. We will update it to reflect the real color of this item.
Question:	Can you test the radiator fluid in a vehicle with this
Answer:	You have to wind it manually

Product features

Multimeter Autoranging with Thermometer

• Temperature measure range:-4 to 1832℉, the thermometer function can help you trouble shoot the temperature problems, over heat problems instantly.
• BT39C is a high performance all-in-one 6000 counts digital multi meter with thermometer for electronics, 1.5V/9V batteries, HVAC, capacitors even cars in AC DC Current, Voltage, Resistance, Capacitance, Temperature, Frequency, Duty Cycle.
• Designed to meet IEC 61010-1 & CATIII 600V over voltage category and double insulation. Easy to replace the multi meter fuse design, a great multi volt meter for electric , DIY, house hold.

NCV Multimeter

Continuity alarm, NCV function troubleshoot the problem quickly. Beep with indicator light flashing, the flashlight helps you find the line under noisy environment when you can’t hear the beep

Easy Replacement Design

Simply open the back panel to replace the fuses or battery. Isolated 9V battery is included built-in the multimeter, please install properly before using

Set Hands Free

Humanity design with back support, magnet, wrist bell. Set it up, Stick it with magnet, Worn on your wrist, Hang it up anyway you want

Auto Backlit Multimeter

BT39K Digital Multi-meter equipped with sensitive sensor, when it come in the dark, it’ll automatically turn on the LCD screen, the darker the clear. Beep for warning before it auto power OFF.

• ▲Quick and Accurate AC/DC Amp Clamp Meter- Auto-ranging clamp multimeter measuring AC/DC current, AC/DC voltage, Resistance, capacitance, continuity, Temperature, diode and Frequency(Hz) ; A perfect troubleshooting meter to help you solve automotive or household electrical problems quickly and safely
• ▲Non-Contact Voltage Detection & Overload Protection - If AC voltage detected, the visible LED lights will shine and the beeper will sound(range is 90V-1000V); Only when testing current, the flashlight of multimeter shines; Overload Protection & Double Insulation Protection avoid electric shock, protect users from touching dangerous areas
• ▲Multifunctional & Easy to read - High-Definition Large Back-lit LCD provides better visibility in dark working area; ZERO function makes for decrease the data error influenced by the earth magnetic field, help you to obtain more accurate measurement; Automatically enters sleep mode after 30 minutes of inactivity for energy conservation; Data hold function; Low battery indicator
• ▲Solid With Free Extra Test Leads : Supplied with free batteries and test leads, all in a carrying pouch for direct use; The test leads are easy to grip; The design is Ergonomic and portable for easy use, perfect for both professional or new users
• ▲ What You Get: 1x Tacklife CM06 Digital Clamp Meter, 2x Test Leads, 2x AAA Batteries, 1x User Manual, 24 month service; Be assured of purchase Tacklife CM06 digital clamp meter multimeter, Please contact us at the first time if the multimeter has any problem

User questions & answers

Question:	What is the DC current measurment capaility? Are there no specs for this meter other than it can read up to 600v
Answer:	It uses a Hall Effect sensor so the AC rating is the same as the DC rating. This website has the specs that confirms that: https://www.wantitall.co.za/tools/multimeter-tacklife-cm01a-clamp-meter-4000-counts-auto-ranging-digital-tester-with-ncv-ac-dc-voltage__b01n014use I tried it on my motorcycle, and it read the starting current of ~75A fine. The paper manual said the same. I can't find an electronic copy. The Amazon UK site has more info. It shows the range as 40A/400A https://www.amazon.co.uk/dp/B01N014CTB HTH.
Question:	Is this meter fast enough to indicate max current draw on the battery cable of a starting vehicle
Answer:	I have used a similar meter to watch the combined starting and glow plug current on a diesel Sprinter. No problem. Since this uses a Hall Effect sensor, instead of routing the 400 amps *through* the meter, overrange current pulses should not be a problem.
Question:	What is the resolution of the current reading
Answer:	While this meter reads to 1 milliamp that doesn’t necessarily mean that it is accurate to 1 milliamp. It drifts quite a bit in the milliamp range. You are given the option to zero it out before taking a reading, but it does continue to drift. It is a marvel that a Hall effect meter that can read DC is offered at this price, but don’t expect +/- 1 milliamp accuracy. I am a physicist by training and at one time worked at Textronix, a premier provider of test and measurement equipment.
Question:	Can DC current be measured by the clamp
Answer:	It not only measures DC current accurately via the clamp but it also indicates the direction of the current. Due to the disagreeing answers on this question, I went ahead and bought it. It works really well for DC current and is going to be be an excellent tool trying to troubleshoot a vehicle battery drain. Just remember that not all clamps measure DC current. Most cheaper meters do not but this one works great for it.

Product features

Tacklife CM06 Clamp Meter 6000 Counts Auto-Ranging

The tool CM06 of TACKLIFE is a clamp meter with an automatic measuring range of 6000. It is easy to use and innovative. The clamp meter with convenient use can safely measure AC/DC current, AC/DC voltage, resistor, diode, on-off and capacitor without stripping or disconnecting the circuit to avoid dangerous situations.

The clamp meter also has "SEL" function selection keys, "Hz/%" frequency/duty ratio selection keys, "ZERO" automatic zero-setting keys, "HOLD" data retention keys, and backlight/working light keys.

Specification:

• Environmental conditions: 600V CAT. III, pollution degree: II, altitude <2000m
• Working environment humidity: 0~40°C (<80% RH, not considered when <10°C).
• Storage environment temperature and humidity: -10 ~ 60 ° C (<70% RH, remove the battery).
• Temperature coefficient: 0.1X accuracy / °C (<18 ° C or > 28 ° C).
• Maximum allowable voltage: 600V DC or 600V AC rms.
• Sampling rate: about 3 times / sec.
• Display: 33/4-digit LCD display.
• Overrange indication: The LCD will show “OL”.
• Input polarity indication: “-” is automatically displayed.
• Dimensions: 218mm X 78mm X 32mm
• Weight: no more than 280g (with battery)
• Clamp head opening maximum size: 26mm

Resistance, Diode, On-off, Capacitance measure

When you measure resistance, diodes, switches, and capacitance, be sure to turn off the power to the circuit under test and discharge all capacitors.

AC or DC Voltage&Current Measure

Rotate the measuring function selection turntable to the voltage test gear, and select the AC or DC voltage measurement function by pressing the "SEL" key. The black pen line and the red pen line are connected to the COM input jack and the INPUT input jack respectively. The voltage of the circuit to be tested is measured at the other two ends of the pen. The operation is simple.

NCV Voltage Induction and Test Wire

When the voltage induction area of NCV is close to 90-1000V AC voltage or fire line, the instrument will emit sound of sound and light alarm signal "droplet". Make the measurement safer.

Ideal Gifts For Your family & Friends to do some DIY at Home

Product description

Features:



Insulation Piercing Clip Test Probe：

Spring loaded press pin of cooper, which can grasp the conductor of max 4mm thickness

Compatible with all Pomona/ FLUKE banana plug leads

Sheathed 4mm receptacle accepts shrouded banana plugs and unshrouded banana plugs

Current: 2A

Gripping Diameter: 4mm

Size: Approx. 14.3cm x 4.8cm/ 5.63" x 1.89"

Color: Red and Black



Silicone Test Lead：

L=1meter/3feet/39in

High quality test lead,

Very soft

Safety test lead one end with the insulated 4mm straight plug and the other end with

1meter/3feet/39in silicone-insulated wire resists heat & cold

13AWG



Package Included:

1Pair Piercing Clip Test Probe Red+Black

1Pair Silicone Test Lead Red+Black



Brand:

TestHelper

• Red+Black Piercing Clip Test Probe
• Red+Black Silicone Test Lead

User questions & answers

Question:

How small a wire can I use this on? I sometimes have to check connectivity on ribbon cables in analyzers

Answer:

The multimeter BT-39C is equipped with nicr-nisi K thermocouple. Insert the temperature probe red end V Ω mA jack, insert COM jack black side. Screw function selector switch to "C/F" position, use the "SELECT" button to choose ℃ Celsius or Fahrenheit ℉ temperature measurement, the temperature probe into the measured temperature field test end, stable after a period of time, namely on the display shows the temperature measured temperature field. You can check the listing specifications in detail.Thank you.

• Storing 100 sets of data and 10 waveforms independently. Capable of holding waveform and data during measurement, easy to view and analyze. Displaying historical data and real-time measurement on the same screen with particular record reading mode for easy comparison.
• Digital multimeter with 200K high-speed A/D sampling, 4000 counts auto-range, one-button switch of graphical waveform display during measurement. High reliability with panel calibration technology and memory calibration, sparing the need for adjustment with potentiometer.
• Analog broadband range up to: D AC ~ 10kHz, Display hold, storage / readout up to 5 waveforms and 100 sets of measurement values. 128X64 high contrast LCD with LED backlighting. Suitable for working at night. DETECTION ALSO Protect safety.convenient for small capacitors to measure quickly.
• DC voltage 0 ~ 1000V, AC voltage 0 ~ 750V, DC/AC Current 0 ~ 20A, Resistance 0 ~ 20MΩ, Capacitance 0 ~ 20μf, Frequency 0 ~ 200KHZ, Diode / Continuity Test, Remote control test。 AC voltage bandwidth up to 20KHz. Innovative design for the one-key silent mode, quiet in mastery. Extending battery life with automatic shutdown function.
• Built-in 500V/20A explosion proof fuse, 20A AC and DC test. 0mf gear position: high capacitance and high accuracy are guaranteed. Realizing one-button automatic waveform capture, operator-friendly to learn and operate. Effectively eliminating lead resistance, distributed capacitance or interference signals with relative value measurement (clearing).

Product features

Oscilloscope Multimeter 2-in-1

Built-in 500V/20A explosion proof fuse, 20A AC and DC test. 0mf gear position: high capacitance and high accuracy are guaranteed. Realizing one-button automatic waveform capture, operator-friendly to learn and operate. Effectively eliminating lead resistance, distributed capacitance or interference signals with relative value measurement (clearing).

Multimeter

Digital multimeter with 200K high-speed A/D sampling, 4000 counts auto-range, one-button switch of graphical waveform display during measurement. High reliability with panel calibration technology and memory calibration, sparing the need for adjustment with potentiometer.

DC voltage 0 ~ 1000V, AC voltage 0 ~ 750V, DC/AC Current 0 ~ 20A, Resistance 0 ~ 20MΩ, Capacitance 0 ~ 20μf, Frequency 0 ~ 200KHZ, Diode / Continuity Test, Remote control test. AC voltage bandwidth up to 20KHz. Innovative design for the one-key silent mode, quiet in mastery. Extending battery life with automatic shutdown function.

Oscilloscope

Storing 100 sets of data and 10 waveforms independently. Capable of holding waveform and data during measurement, easy to view and analyze. Displaying historical data and real-time measurement on the same screen with particular record reading mode for easy comparison.

Analog broadband range up to: D AC ~ 10kHz, Display hold, storage / readout up to 5 waveforms and 100 sets of measurement values. 128X64 high contrast LCD with LED backlighting. Suitable for working at night. DETECTION ALSO Protect safety.convenient for small capacitors to measure quickly.

• [High Resolution Large Screen 3 Line Display]: High resolution large screen triple line display can show 3 test results on the screen, such as voltage, frequency and analog bar; or celsius, fahrenheit and analog bar
• [Manual & Auto Mode Integrated Design]: Not only suitable for traditional manual switching operation, but also suitable for beginners' no-switching operation.
• [VFC Function]: VFC function can measure the output voltage of inverters.
• [Battery Test & Square Wave Output Function]: Battery test function can more accurately measure battery performance; Square wave generator can output pulse train up to 5MHz.
• [Dual Back Probe Holder Design]: The probes can be fixed in the holder for easy single-hand measurement; or the probe hidden in the holder to prevent being hurt, safe to carry.

• WIDE RANGE of tests for Voltage, Current, Resistance, Continuity, Capacitance, Frequency; Tests Diodes Transistors, Temperature.
• PROFESSIONAL LEVEL features include Auto-Ranging capability, and True RMS for measuring both AC Current and Voltage
• EASE OF USE: Convenient features like Data Hold, Large LCD Backlit Screen, Auto Shut-off and Hanging Magnet, and Kickstand make taking and recording measurements easier than ever before
• IDEAL FOR COMMERCIAL settings where it can handle the demands of a long workday, from the durable exterior to the wide range of heavy-duty capabilities
• Built-in F400mA/600V and F10A/600V explosion-proof ceramic fuse tubes; Double Protection, more secure and reliable; The fuses can protect the multimeter effectively; Overload protection on all ranges. 3 Year Warranty provided by AstroAI. Note: Please take off the cap before using the test leads.

Product features

AstroAI 6000 Counts True RMS Digital Multimeter

The AstroAI True RMS Multimeter is designed to be safely and accurately used by professionals in a commercial setting or weekend DIYer's that need a little more power utility from their standard digital multimeter. It's easy and safe to operate with advanced features built for measuring seemingly everything. Run tests on diodes and transistors while being able to measure voltage, current, resistance, continuity, capacitance, and frequency, all on one device.

Troubleshoot Electrical Problems

AstroAI multimeter is professionally designed to troubleshoot electrical problems or just for electronics training.

Continuity Test

Connect the test leads to two points on the circuit being tested.

Intelligent Anti-burn and Double Protection

Built-in F400mA/600V and F10A/600V explosion-proof ceramic fuse tubes; Double Protection, more secure and reliable; The fuses can protect the multimeter effectively; Overload protection on all ranges.

Backlit LCD and Data Hold

Large digital display with backlit LCD for visibility in dimly light areas; It is often easier to use the data hold function to freeze the data being displayed on the digital display.

Multi-Function Socket

Use the multi-function socket to measure both Capacitors and Transistors.

Hanging Magnet and Kickstand

Hanging magnet and kickstand make taking and recording measurements easier than ever before.

Temperature Test

Carefully touch the end of the thermocouple to the object being measured; Wait for the temperature reading to settle, then record the result from the LCD display.

• 【6000 5/6 Digital Multimeter】LCD Display with 5999 and 2000uF, relative value measuring, maximal/minimal value measuring, auto/manual range.
• 【Extensive Multimeter】With this autoranging multimeter, it not only measures AC/DC Voltage and Current, Resistance, Frequency, Duty Cycle but also Temperature, Analog Bar.
• 【Safety Security】Low Battery Voltage Indication, Overload Protection on all ranges, Data Hold Function, all these special features provides you secure and convenient testing.
• 【Protective Rubber Sleeve & Stand】Provide protection against knocks and bumps; Built-in support stand for hand free use; Test Probes Slot to place and keep the test probes.
• 【Test Leads & Multimeter Carry Bag】Includes two AAA battery , a pair of test leads & K-type temperature probe, a Carry Bag for portable multimeters carry and keep.

User questions & answers

Question:	Does it have a backlight display
Answer:	Thanks for your asking. For our Proster Auto-Ranging Digital Multimeter, LCD Display with 5999 and 2000uF, relative value measuring, maximal/minimal value measuring, auto/manual range. We are sorry this Multimeter can't connect to PC. All our products have full 18 months warranty, if there is any problem,we will try our best to help, please rest assured. Belle Proster Customer Service Team [email protected]
Question:	Dose the LCD have back light
Answer:	The smallest wires that I’ve tested are thermostat wires
Question:	Can it measure 900 degrees temperature
Answer:	They're the same size, both can measure AC DC volt, current, resisitance, capacitance, Frequency, duty cycle Diode test, Continuity, Data hold, Auto backlit, Auto power off, NCV, Relative value.. But there're more functions works on BT-39C only, such as: #1Temp Test(-4 to 1832 degrees F), #2 Battery test(1.5V/9V), True RMS, #3 BT-39C come with 9V battery, and 39K is 1.5V*2pcs Hope this answer helps
Question:	I see a rs232 symbol on the top left of the screen. is this unit connectable to a pc
Answer:	The multimeter BT-39C has an on-off beep function, which can assist the user in testing and judging. The meter also has an NCV function that emits a beep and flashing warning light during non-contact voltage testing.

Product features

Proster Auto-Ranging Digital Multimeter 5999 2000uF, relative value measuring, max/mini value measuring, auto/manual range.

Proster VC99 3 5/6 professional digital multimeter holds functions of measuring DCV, ACV, DCA, ACA, resistance, capacitance, frequency, temperature, duty cycle, transistor, diode, and continuity, etc.

It also can provide special functions including analog bar, unit symbol display, data holding, relative value measuring, maximal/minimal value measuring, auto/manual range switching (RANGE), auto power off and warning alarm.

Multifunction -- Low Battery Voltage Indication, Overload Protection on all ranges, Data Hold Function.

Comes wtih Carry Bag, it is very convenient to carry and keep.

Proster multimeter can make you test faster, safer, and easier.

Test Probes Slot

It is very convenient to place and keep the test probes.

Product description

Specifications： Display Count: 2000 Auto Range: Yes Jaw Capacity: 17mm True RMS: Yes Diode: Around 3.0V V.F.C.: Yes NCV: Yes Data Hold: Yes Zero Mode: Yes LCD Backlight: Yes Auto Power Of: Around 15 Minutes Continuity Buzzer: Yes Low Battery Indication: 2.5V Input Protection: Yes Input Impedance for DCV: 10M AC Current (A) 2A/20A/100A (±2.5%+5) DC Current (A) 2A/20A/100A (±2%+3) AC Voltage (V) 2V/20V200V/600V (1.0%+3) DC Voltage (V) 200mV/2V/20V200V/600V (±0.7%+3) Resistance (Ω) 200Ω/2KΩ/20KΩ/200KΩ/2MΩ/20MΩ (±1.0%+2) Capacitance (F) 2nF/20nF/200nF/2μF/20μF/200μF/2mF/20mF(±4%+5) General Characteristic Product Net Weight: 170g Product Size: 175mm * 60mm * 33.5mm Power: AAA 1.5V x 2 (Included) LCD Size: 39.3mm * 21.5 mm Package Size: 18.6 * 7.2 * 5.9cm / 7.3 * 2.8 * 2.3in Package Weight: 311g / 11oz Package List: 1 * UNI-T UT210E Mini Clamp Meters (Batteries not Included) 1 * Test Lead 1 * English Manual

User questions & answers

Question:	is it auto ranging for measuring amp
Answer:	No, you cant. With this or o other clamp. The clamps detect the electromagnetic waves that only AC current can do. DC CANT.
Question:	Description says: "batteries included: no. batteries required: no." is this a misprint? or is there an ac adapter option
Answer:	Thanks for your asking. For our Proster Auto-Ranging Digital Multimeter, LCD Display with 5999 and 2000uF, relative value measuring, maximal/minimal value measuring, auto/manual range. All our products have full 18 months warranty, if there is any problem,we will try our best to help, please rest assured. Belle Proster Customer Service Team [email protected]
Question:	can someone please let me know if there is a user manual for this unit, or a link? mine arrived with a manual, but in chinese. thank you
Answer:	Thanks for your asking. For our Proster Auto-Ranging Digital Multimeter, LCD Display with 5999 and 2000uF, relative value measuring, maximal/minimal value measuring, auto/manual range. All our products have full 18 months warranty, if there is any problem,we will try our best to help, please rest assured. Belle Proster Customer Service Team [email protected]
Question:	Can I measure DC current with the clamp
Answer:	Thanks for your asking. For our Proster Auto-Ranging Digital Multimeter, LCD Display with 5999 and 2000uF, relative value measuring, maximal/minimal value measuring, auto/manual range. All our products have full 18 months warranty, if there is any problem,we will try our best to help, please rest assured. Belle Proster Customer Service Team [email protected]

• 【Auto-Ranging Multimeter 6000】Accurate digital multimeter for AC/DC voltage/current, resistance, capacitance, frequency, capacitance, temperature, continuity test, NCV, diode, triode, duty cycle, hFE, automatic polarity display and unit symbol display.
• 【Safety & Overload Protection】600V CAT IV, 1000V CAT III, double fuse safety; Precision Circuit Board, PTC ceramics to protect circuit for resistance frequency measurement, shielding interference and continuity test can be 50Ω.
• 【Multi-function & Clear to Read】The beep is turned on and off automatically; NCV with Visual & Audible Alarm Ensure Your Life Safety; FUNC Key to Select Multi-function; Large LCD display with backlight for your convenient use.
• 【Easy to Use & Portable Design】Data hold and auto power off function; A back bracket is convenient to support multimeter, and just place the test probe on the back; With a hanging hole, you can hang the multimeter in the right place.
• 【Accessories & compatibility】1 x Temperature Probe, 1 Pair of Test Probe, 1 Pair 10A small alligator clip, suit all your needs for school, lab, factory and other machinery industries. Not only for home users, beginners, maintenance enthusiasts, but also for professional electricians and technicians.

User questions & answers

Question:	Why the accuracy of the meter is not given?, only range
Answer:	Just get a good magnifier from Michael's or Hobby Lobby. You'll need it when you get older anyway.
Question:	Input impedance? 10 megohm
Answer:	No. It has three ranges 2A, 20A,100A, both DC and AC.
Question:	Why the accuracy of the meter is not given?, only range
Answer:	Batteries were included and are required. I did not see an ac adapter option or I would have got.
Question:	Where can I get a user manual with printing that is large enough to read
Answer:	==>> UPDATED Link for product page with link to UT210E Manual at bottom: http://www.uni-trend.com/productsdetail_1190_915_915.html

Product features

Specifications:

DC Voltage Range: 2V/20V/200V/600V;

DC Voltage Resolution: 0.001V/0.01V/0.1V/1V;

AC Voltage Range: 2V/20V/200V/600V;

AC Voltage Resolution: 0.001V/0.01V/0.1V/1V;

DC Current Range: 200.0μA/2000μA/20.00mA/200.0mA/2A/10A;

DC Current Resolution: 0.1μA/1μA/0.01mA/0.1mA/0.001A/0.01A;

AC Current Range: 200.0μA/2000μA/20.00mA/200.0mA/2A/10A;

AC Current Resolution: 0.1μA/1μA/0.01mA/0.1mA/0.001A/0.01A.

True RMS hFE Temperature hFE Multitester Temperature Range: -20～1000℃ / -4～1832℉

Frequency Range: 9.999Hz/99.99Hz/999.9Hz/9.999KHz/99.99KHz/999.9KHz/9.999MHz;

Frequency Resolution: 0.001Hz/0.01Hz/0.1Hz/0.001KHz/0.01KHz/0.1KHz/0.001MHz;

Resistance Range: 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ;

Resistance Resolution: 0.1Ω/0.001k1Ω/0.01kΩ/0.1kΩ/0.001MΩ/0.01MΩ;

Capacitance Range: 9.999nF/99.99nF/999.9nF/9.999μF/99.99μF/999.9μF/9.999mF/99.99mF;

Capacitance Resolution: 0.001nF/0.01nF/0.1nF/0.001μF/0.01μF/0.1μF/0.001mF/0.01mF;

Duty Cycle: 0.1 ～ 99.9%;

Package List

1 * 6000 Counts Multimeter;

1 * Pair of Test Probe;

1 * Temperature Probe;

1 * User Manual;

1 * Alligator Clip(1 pair) .