13 best elf detectors

• Multiple high sensitivity sensors installed for detecting Power line, Smart meter, Cell phone, Microwave etc.
• Identify/recognize the common possible sources, such as Power line, Cell Tower, Microwave, Static etc.
• Safety suggestion lets you understand current situation instantly.
• Detects 5G network signal and RF up to 10Ghz
• Built-in RF Spectrum analyzer and GQ RF Browser for real time RF monitoring.

User questions & answers

Question:	All i want to know if this detector gq emp-390 will detect 5ghz wifi signal and 5g cell phone
Answer:	Yes it will detect 5GHz signal but not in all modes of operation. If it is the predominant source then the general Radio Frequency RF mode reading will reflect it. If it is a source mixed with others than all sources will be reported together as one value (sum/average over time...unknown. most likely average). It will not detect it in spectrum analyzer, by frequency, and show it's individual power level. Spectrum analyzer will detect 2.4GHz wifi. 5GHz is out of range of spectrum analyzer as is everything greater than 2.5GHz. It might detect presence of 5GHz data packet bytes in digital mode but I don't know for sure, have not tested this.
Question:	Can it tell you how much emf your cell phone emits
Answer:	yes it does, in 3 scales. some readings read a voltage per meter and another is electro-magnetic reading, I searched through alot and after receiving this I found it to be the best affordable technology in its class, and it even automatically identifies the difference between cell phone and power line EMF in digital readable format.
Question:	Will this device analyze a 5 gig wifi signal like it does a 2.4 or
Answer:	Yes, it does analyze 5 Ghz frequencies. If you are asking whether it will analyze 5G as in 5th generation Millimeter Waves, the answer is NO.. 5th Generation 5G will use frequencies between 30Ghz and 300Ghz... You can get one that costs about $40,000... As in, they are not available to the public .
Question:	Is the 5g wifi signal the same as the new 5g cell phone signal? will it measure the new 5g phones? it is confusing: it says: "rf up to 10 ghz
Answer:	The 5G wifi is referring to 5Ghz Wifi, and it is covered by this meter RF band. The 5G cell phone network is referring to 5th Generation cell phone network, it is nothing to do with 5GHz, basically its base band is much higher than 5Ghz

Product features

New display maximizes the amount of information

• All-in-One display lets you see reading from all sensors at once.
• Advanced features and multi-sensors to ensure best detection from EMF, EF and RF.
• Compact design for easy testing and measurement.
• Safety suggestion lets you understand current situation instantly.
• Radiation source recognition provide fastest way to find out the radiation source.

Classic display option is quick to adapt application

• With traditional analog style display, the data becomes even easier and faster to understand.
• Left and right vertical bars are also indications of the EF and EMF radiation level in glance.
• Safety suggestion in large font for easier reading.
• Real Time clock displays current time for time sensitive testing.
• Front LED visualizes alarm when triggered.

Real-Time EMF EF Graph

• Presents exact changes of EMF and EF radiation level been detected in past 45 seconds.
• The right side of graph shows a reading for both EMF and EF.

RF Spectrum Analyzer

• Advanced users are able to use built-in RF Spectrum Analyzer to discover the RF signal power in a specific frequency.
• This graph shows two RF signal that has been detected at same time: Microwave oven and WiFi signal.

RF Browser

• GQ RF Browser is a unique feature of GQ EMF detector. The real-time graph is based on high sensitivity sensors.
• This graph shows a close by cell phone that just received a text message.

Real-Time Power Distribution Histogram

• RF power distribution is another important factor to let us understand how the RF radiation power distributed during the period.
• This graph shows the highest RF power is 6.47% of total at 0.049 milliWatts per square meter during the testing period.

Product description

This  EMF/ELF Single Axis Gauss Meter is designed to measure  electromagnetic fields with extremely low frequency  (ELF) of 30~300Hz. 

Features:

• Professional Quality Meter
• Data hold function, freezes the result
• Accurate measurements to 2.5% over a measuring range of 200/2000mGauss (20/200µTesla)
• Maximum hold function
• Range display 20, 200, 2000
• ELF frequency bandwidth of 30Hz to 300Hz
• Single axis - sampling 2.5 times per second
• Tremendous sensitivity
• Low battery indication
• Over Range indicator
• Measure electromagnetic field radiation levels from fans, electrical appliances, wiring, and power lines and many more
• Easy to operate with easy-to-read display
• Standard: CE and RoHS
• Made in Taiwan
  
   

 

Specifications:

• Display:3-1/2 digits LCD with 1999 maximum reading
• Switchable Tesla/microTesla and Gauss/milliGauss functions
• Measuring Range : 200/2000 mG , 20/200µT
• Resolution:0.1/1 mG or 0.01/0.1 µT
• Frequency response: 30Hz to 300Hz
• Sensor: Single Axis
• Accuracy:±(2.5%+6dgt) at 50Hz/60Hz
• Sample rate: 2.5 times per second
• Overload: LCD display "OL"
• Power Supply: 1 x 9V Battery (included)
• Battery life: Approx. 100 hours
• Operation Altitude: up to 2000M
• Operating Environment: 
  • Temp. :5~40°C
  • Humidity:< 80% RH

 

Set Includes: 

1 x EMF/ELF Single Axis Digital Gauss Meter

1 x English User's manual

1 x 9V battery FREE

1 x Carrying Bag FREE

Moisture absorbent pack

Standard packaging box

 

• EMF RADIATIONS: from sources such as power lines, appliances, electrical wires, etc..
• MEASURING RANGE : 200/2000 mG , 20/200µT
• GAUSS & EMF METER : measuring magnetic fields in milligauss or micro tesla units
• EASY TO OPERATE, with accurate measurements, Includes user manual
• COMMONLY USED: by home inspectors, inspecting safe living environments, whose clients are planning to purchase a new home.

User questions & answers

Question:	is this good to use to measure inside a infra red sauna
Answer:	Yes
Question:	would this work on computer monitors
Answer:	Mine comes with VGA cable, even pre-attached for you.
Question:	How does the reading convert to mSv
Answer:	Yep. It says it is VESA compatible right there in the title.
Question:	Does the range include outlets to powerlines? Whats the weakest and strongest it can measure? Thanks
Answer:	You could get an HDMI to DVI cable. Amazon sells there own for about $6-$10 for about 6 feet.

Product description

Features:

Uses three internal orthogonal sensors to test a wide range of ELF magnetic fields, independent of measurement angle

Designed to provide user a quick, reliable and easy way to measure magnetic field radiation levels around power lines, home appliances and industrial devices

Cost-effective hand-held instrument that was designed and calibrated to measure magnetic field radiation at different band widthsfrom 30Hz to 2000Hz

Display micro Tesla (µT) or milli Gauss (mG) units

Data hold (HOLD), maximum hold (MAX) and minimum hold (MIN) functions

Auto range or Manual range select mode

500 data sets data logging capacity with memory size

Real Time and Calendar function

Low battery indication

Over load display ("OL")

Auto power off function

Made in Taiwan



Specifications:

Display: 4 digits Triple LCD Display maximum reading 9999

Resolution: 0.01/0.1/1 mG or 0.001/0.01/0.1 µT

Frequency response: 30 Hz ~ 2000Hz

Accuracy: 20mG ±(3.0% + 30 digits) at 50Hz/60Hz or 3.0µT ±(3.0% + 30 digits) at 50Hz/60Hz

Overload: LCD display "OL"

Sample rate: 2.5 times per second

Battery: 1 x 9V Battery (included)

Battery Life: approx. 100 hours

Operating Temperature: 5~40°C (41~104°F)

Operating Humidity: < 80% R.H.

Storage Temperature: -10~60°C (14~140°F)

Storage Humidity: < 70% R.H.

Item Dimension (Meter) L x W x Thickness: 182 x 78 x 30mm

Item Weight:

*Meter: 184g (without battery)

*Whole Set: 447g

Shipping Weight: 0.49kg

Package Size: 21cm x 19cm x 6cm



Set Includes:

1 x EMF Tri-Axial EML/ELF Meter

1 x 9V battery

1 x Carrying bag

1 x English Instruction Manual

Standard Factory Package

• 【WIDE RANGE】- Measuring electromagnetic fields (EMF) of extremely low frequency (ELF) of 30 to 2000Hz, showing the measurement in units of Gauss or Tesla, with the range of 20/200/2000 mG, 2/20/200μT.
• 【3 AXIS SENSOR】- Specially designed triple axis internal measurement sensors (X, Y and Z) enhance quick & reliable measurements.
• 【Multifunctions】-  More functions that facilitate the use of this meter, e.g. data hold (HOLD), maximum hold (MAX), minimum hold (MIN), overload indication, auto power off, low battery indicator
• 【SIMPLE OPERATION】- Functions are clearly stated on the buttons of the meter, with Auto range or manual range select mode available, it is suitable for beginners and professionals
• 【WIDE APPLICATIONS】- They are capable of measuring the electromagnetic field (EMF) radiation intensity and you will know the level of electromagnetic pollution generated by appliances, power lines and industrial machinery, e.g. electric transmission equipment, microwave oven,  air conditioner, refrigerator, computer monitor, video/  audio device and so forth.

User questions & answers

Question:	So i built a system that used 240 ac current to power an electromagnet ummm will it fry this from 3' away? I mean it does pull key rings out of pants
Answer:	YoLink Motion Sensor is for indoor use, it is not weatherproof and waterproof. If you use it outdoor, please wrap it and keep it away from rain or water. We are developing a YoLink outdoor motion sensor and it will be released in next year.
Question:	What is the entire range it can measure in mG
Answer:	You don't need Alexa for driveway motion alerts. The YoLink App can notify you through smart phone's push message , email or text message notifications. You also can buy the YoLink Siren for loud sound notification. If you have Alexa, you can set the voice notification through the Alexa routines. Thanks!
Question:	Is this device able to test electromagnetic fields inside a house? I'm loking to test is there is any field coming from the electric facility near by
Answer:	Yes, the ethernet cable is included in the package of YoLink Hub. The dimensions of YoLink Hub is 4.33 x 4.33 x 1.06 inches, The dimensions of YoLink Motion Sensor is Φ2.44 x 1.1 inches (Dia x D)
Question:	Would this be good to measure EMF from a power substation near houses
Answer:	Yes, you can replace 2 rechargeable 2000mah 18650 lithium ion batteries, which can be easily purchased in local markets or Amazon stores.

Product description

Beautiful. Detailed. Alive. The venu GPS smartwatch features a bright, beautiful display and a battery life of up to five days, so you can spend more time doing the activities you love. Get on-screen, Animated cardio, strength, yoga and Pilates workouts right on your wrist. With the broadest available range of all-day health monitoring features — including respiration tracking, body battery energy monitor, stress and more — venu can show you the full picture of your health in vivid detail. Keep your phone and wallet at home, because this Watch lets you download music for phone-free listening and pay from the wrist Using Garmin Pay contactless payment solution (available for supported cards from participating banks).

• Beautiful, bright amoled display and up to five-day battery life in smartwatch mode; Up to six hours in GPS and music mode
• The broadest range of all-day health monitoring features keeps track of your energy levels, respiration, menstrual cycle, stress, sleep, estimated heart rate and more
• Easily download songs to your watch, including playlists from Spotify, Amazon music or Deezer (may require a premium subscription With a third-party music provider), and connect with headphones (sold separately) for phone-free listening
• Record all the ways to move with more than 20 preloaded GPS and indoor sports apps, including yoga, running, pool swimming and more
• Get easy-to-follow, animated cardio, strength, yoga and Pilates workouts right on your watch screen

User questions & answers

Question:	Is there a waterproof mode
Answer:	unfortunately we had to cancel this item so we would not be able to answer your question
Question:	How does the always on mode affect the battery life? Can you still get to ~5 days on a charge
Answer:	I am 5’ 8” and weight 162. Ordered L and it runs a bit large.
Question:	Does the Garmin Venu´s display stay permanently on
Answer:	No pockets. They are fantastic bibs however. I've got about 2K miles on one pair and are just starting to show wear.
Question:	How is this watch different from Vivoactive 4 besides the display
Answer:	I'm 6'2 and 205#. XL fit perfectly. I found bibs run true to size. Jerseys are a little small though.

Product features

GPS Smartwatch with a Bright, Beautiful Display Built for the Active Lifestyle

• Watch case size 43mm; Fits wrists with a circumference of 125-190 mm
• AMOLED display and up to 5-day battery life in smartwatch mode; up to 6 hours in GPS mode with music
• Keep an eye on your health 24/7 with the broadest available range of all-day health monitoring features
• Easily download music to your watch for phone-free listening
• Record all the ways to move with more than 20 preloaded GPS and indoor sports apps
• Get easy-to-follow, animated workouts right on your watch screen

Body Battery Energy Monitoring

See your body’s energy levels throughout the day, so you can find the best times for activity and rest.

Smart Notifications

Receive emails, texts and alerts right on your watch when paired with a compatible smartphone. You can even respond to texts if you have an Android phone.

Music

Easily download songs to your watch, including playlists from your Spotify, Deezer or Amazon Music accounts (subscription may be required). Connect with wireless headphones (sold separately) for phone-free listening.

Safety and Tracking Features

While your watch and phone are paired, your location can be sent to your contacts either manually or — during outdoor activities — automatically with built-in incident detection (when paired to a compatible smartphone), if needed.

Garmin Pay

Breeze through checkout lines with Garmin Pay contactless payment solution through participating providers (not all countries and payment networks are eligible).

Connect IQ Store

Add personality to your watch by downloading apps, widgets, watch faces and more. It’s easy and — even better — it’s free.

Animated Workouts and Garmin Coach

Get a personal running coach on your wrist, for free, to help you train for your next 5K, 10K or half-marathon.

Easy-to-follow, animated cardio, strength, yoga and Pilates workouts come preloaded on the watch, and you can download more from the Garmin Connect app.

Product description

The LATNEX AF-5000 Multi-Field 5G EMF, RF, ELF and Gauss Meter is a Semi-professional but small and compact device that can measureelectromagnetic field(3-axis), electric field, and RF strength. 

The AF-5000 measures high-frequency electromagnetic fields (RF) in a frequency range of 50MHz - 10GHz and low frequency electric and magnetic fields (EMF) at 50-60Hz.

Magnetic field strength is measured in milliGauss (mG) and microTesla (μT) for 3 axis X, Y, and Z.

Electric field strength is measured in volt per meter (V/m).

RF field strength is measured in millivolt per meter (mV/m).

A 2 inch color TFT LCD screen displays the 3 results clearly all at the same time, with also the option to hold the 3 results.

Features:

- 4 digits, 2.4 inches color TFT LCD 

- 3 measurements in one meter: 

Electromagnetic Field ( 3 - axis ). 

Electric Field. 

RF Strength Field. 

- Data Hold (HOLD) 

- Language Selection (choose your language): English; Traditional Chinese; Simplified Chinese; Japanese; Spanish.

• ✔ 5G RF EMF METER AND DETECTOR ALL Types of EMF fields with Calibration Certificate - Reliable meter for measuring RF and LF Radiation from sources such as Cell Phones, Cell Towers, Smart meters, Wifi modems, High Power Lines, Appliances, Electrical Boxes, and Wires. EMR Readings based on EMF meters and detectors and rf meters and detectors standards
• ✔ IMPRESSIVE DESIGN, QUALITY, AND ALARM FUNCTION - Powered by 3 AAA batteries and has large screen and buttons to toggle between RF, Electrical and Gauss Meter modes and alarm function, which makes it easy to operate by both beginner, senior or elderly people and advanced users
• ✔ FREE TECHNICAL SUPPORT PROVIDED FOR EVERY PURCHASE; Phone and Email support via Amazon Messages and User manual guide available for download in this listing
• ✔ OUTLINED FEATURES - RF Detector or RF Meter Mode - 50MHz~3.5GHZ; EMF METER or EMF Reader for Electrical Field up to 2000V/M; Gauss EMF Meter 3-axis fields sensor; Manual data memory (Max & AVG) records, Alarm function with ON/ OFF
• ✔ 100% MONEY BACK GUARANTEE 2 YEARS WARRANTY ensures this will quickly become your favorite no-risk purchase. Many people are getting the EMF Meter as a gift for their loved ones. This makes a fine holiday, birthday, anniversary, mother or father’s day gift

User questions & answers

Question:	whats the difference between this and the other amazon items at
Answer:	The design is open source. But looks like most manufactors are Asian.
Question:	What is the rf frequency range? the information at the top says "50mhz~3.5ghz" but elsewhere it's indicated to be up to 10ghz
Answer:	Yes. It can produce an SWR plot like a Rig Expert Antenna Analyzer.

Product description

Arkon's BT010 windshield suction mount is ideal for mounting Bluetooth GPS receivers, small radar detectors, and auto-deduct/EZ-Pass toll road electronic devices that need to be mounted high up on the windshield. This mount features a 2 5/8” x 2” base platform to attach your device with either metal strips for magnetic attachment, or hook-and-loop fastener tape. The mount installs easily without tools and can be removed or transferred to another vehicle conveniently. This mount uses PVC suction and a one-touch suction lever to keep the mount on the windshield. The base platform adjusts vertically in order to position the device exactly where you want it.

• Mount EZ Pass toll auto deduct devices as well as Bluetooth GPS receivers and small radar detectors
• Use magnets or hook and loop fastening tape to attach device to 2 5/8 x 2 inch base platform
• Installs and removes easily
• 2 year limited warranty

User questions & answers

Question:	fastrak flex Will it fit
Answer:	It depends on what you are trying to accomplish. If you are trying to measure the electro magnetic field generated by the lights in the sauna, then yes.
Question:	Can this work with viofo a119 v3 and the gps plate
Answer:	Hi, It is designed to measure electromagnetic fields with extremely low frequency (ELF) of 30~300Hz.
Question:	how much weight can it handle
Answer:	This meter is applied to measuring electromagnetic fields of extremely low frequency(ELF) of 30 to 300Hz. The reading will display in mG or μT.
Question:	So I want to put my radar detector on this platform, does it just lay on top or is it attached somehow
Answer:	Hi, It is designed to measure electromagnetic fields with extremely low frequency (ELF) of 30~300Hz.

Product description

The VLF Metal Detector will help you get started finding your treasure, without spending a fortune to get it. Lightweight and adjustable in size, young and old alike will delight in hours of productive detecting. Iron relics, coins and household items as well as precious metals like silver and gold won¿t escape Bounty Hunter¿s VLF Metal Detector. Requires 2 9-volt Alkaline batteries (not included)

• User-friendly metal detector offers great performance and value for all ages
• Power and sensitivity control help you find specific metals at specific depths
• Trash eliminator control ignores metals you don’t want
• Requires 2 9-volt alkaline batteries (sold separately)
• 1-year limited warranty

User questions & answers

Question:	What is the frequency of this metal detector
Answer:	It doesn’t cover it completely, but that is what I use it to hold. I previously submitted a review (with picture) showing it. I covered the transponder in black vinyl and it blends in perfect
Question:	How can I get replacement parts
Answer:	I'm not familiar with your unit but cannot think why it wouldn't. I used an adhesive pad to mount the plate for my Rexing S1 then the camera clips to that. It allows for a greater amount of adjustments than I had before.
Question:	Will this metal detector detect a survey pin (metal stake) & may be hidden in a pile of rotten wood or buried in the ground
Answer:	I'm not exactly sure how much weight it can handle. I purchased this product hoping that I can mount my radar on top of it and have it attached to the dashboard vs. the windshield because the sun literally cooks your radar system over time. I didn't really get to utilize like I wanted to but it is stilled durable for my radar.
Question:	can you use this at the beach if you wade out in waist deep water
Answer:	It comes with a few Velcro strips with glue on the back. You glue one to the holder and the other on the bottom of your radar detector. I use the holder with a GPS receiver and it works great.

Product description

Kick into the holidays with the animated Christmas kickers from Mr. Christmas. Watch the elf's animated legs Kick up and down. Easily installs in your Christmas tree with the included arm and straps. Elf can also be placed in a planter for an additional comical effect. Motion activated. Made of fabric with ringing jingle bells. 16" Long legs. Battery operated (3XAA batteries, not included).

• Animated kicking elf legs
• With arm and strap to secure in any Christmas tree
• 16" Legs
• Motion activated.
• Jingle bells on legs ring when kicking
• Fabric construction
• Battery operated (3XAA, not included)

Product description

LED Sensor Night Light Instruction



SPECIFICATION:



1.Input Voltage: AC110-127V;



2.Output Voltage: DC2.8V;



3.Current: ¡Ü25MA;



LIGHTING MODE:



This LED sensor night light lights up by the brightness of light.



The photoconductive resistance inside the night light detect the external light. While the external circumstance be darkened, the photoconductive resistance control to turn on the circuit, then the night light start lighting.



While the external circumstance brighten to the critical point of photoconductive resistance, the circuit cut-off automatically, then the night light turns off to save electricity.



CAUTION:



Risk of electric shock and fire hazard. This product is not a toy and is not intended for use by children. FOR ADULT USE ONLY.



For safe use, plug only into exposed wall outlets where device is ventilated and cannot contact bed coverings or other material. Do not use with extension cords.

• High brightness LED inside. Bright enough to see where you're going in the dark without turning on other lights. Lights up at dusk, turns off at dawn automatically.
• It lasts up to 100000 hours no worry about bulb replace. Energy efficient 0.5W without using excessive electricity. Cool to the touch. Low maintenance cost, convenient to use and so on.
• Package: Includes 2PCS led night lights; Dimension: 3 in W x 4.5 in D x 1.4 in H (76mm x 114mm x 30mm); Net Weight: 60g.
• LED night light set is perfect for the bathroom, bedroom, hallway, stairway, kitchen, living room or anywhere you need a guiding light. It also portable for travel.
• Unique pattern and square acrylic material flat against the wall gives off a diffused light; the non-polarity plug does not block the second outlet on the wall.

Product description

LED Sensor Night Lights

Introduction

High brightness LED inside. Lights up at dusk, turns off at dawn automatically. Cool to the touch. Low maintenance cost, convenient to use, and so on. It could be used in a bedroom or other places which need microlight.



Specification

a. Input Voltage:AC110-127V

b. Output Voltage: DC2.8V

c. Current: less than or equal to 25MA

d. Dimension:3 in W x 4.5 in D x 2 in H (76mm x 114mm x 48mm)

e. Power:0.5W



Lighting Mode

This LED sensor night light lights up by the brightness of the light. The photoconductive resistance inside the night light detects the external light. While the external circumstance is darkened, the photoconductive resistance control to turn on the circuit, then the night light start lighting. While the external circumstance brightens to the critical point of photoconductive resistance, the circuit cut-off automatically, then the night light turns off to save electricity.



Caution

Risk of electric shock and fire hazard. This product is not a toy and is not intended for use by children. For adult use only. For safe use, plug only into exposed wall outlets where the device is ventilated and cannot contact bed coverings or other material. Do not use with extension cords.

• ☀SIZE/PACKAGE: 3 in W x 4.5 in D x 2 in H, made of high-quality plastic, includes 2pcs LED night lights.
• ☀INSTRUCTION: Input Voltage: AC110-127V / Output Voltage: DC2.8V, Current:≤25MA, Power:0.5W.
• ☀FEATURE: High brightness LED inside. Lights up at dusk, turns off at dawn automatically, low maintenance cost, perfect to getting up at night.
• ☀OCCASION: Perfect for bedroom, bathroom, hallway, stairway, kitchen, living room, holiday gifts, and so on.
• ☀CARE: Risk of electric shock and fire hazard. This product is not a toy and is not intended for use by children, for adult use only.