






Product description



Turn on/Turn off/Data Hold
Short press this button to turn on the EMF meter.
After startup, short press power on “HOLD”, reading will be locked and “HOLD” icon shows on the screen.
Long press this button to turn off the detector.

Average/Peak Value Mode/Sound Alarm
Short press this button to switch average or peak value mode. Average value mode displays “AVG” icon, peak value mode displays “VPP” icon.
Long press this button to turn the sound alarm on or off.

Test Temperature
Short press this button to switch temperature units between ℃ and ℉.
Long press this button to switch the magnetic field unit between μT and mG.

Clear LCD Screen Display
When the EMF detector reading more than 40V/m or 0.4μT, it will be warning and the screen turns red, the indicator light will flash and the buzzer will alarm.



Product Dimensions : 5.91 x 3.23 x 1.3 inches; 6.38 ounces
Item model number : C4
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : June 20, 2024
Manufacturer : Ywcking
ASIN : B0D3G6JQS2
Best Sellers Rank: #73,135 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #61 in EMF Meters
Customer Reviews: 4.5 4.5 out of 5 stars 302 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
【Precision Measurement & Clear Data】Professional-grade EMF detector with a high-sensitivity sensor and smart chip for real-time radiation analysis. Features a vivid LCD display and dual measurement modes: mG/µT (magnetic fields) and V/m (electric fields), ensuring lab-grade accuracy for home/industrial use.
【Smart Threshold Alert & Safety Alarms】Triggers triple warnings (red screen + flashing LED + buzzer) when radiation exceeds safe levels (>40V/m electric fields or >0.4µT/4mG magnetic fields). Long-press the AVG/VPP button to mute alarms while keeping visual alerts active.
【Versatile Applications】Identify high EMF sources from appliances (microwaves, refrigerators), electronics (PCs, routers), or cell towers. Ideal for home safety checks, workplace assessments, ghost hunting, and outdoor exploration. Safeguard your environment with actionable insights!
【Multi-Function & User-Friendly】Toggle between real-time/peak readings (AVG/VPP button) and °F/°C units (℃/℉ button). Auto-sleep mode saves battery after 5 minutes of inactivity. Compact design with USB-C rechargeability for on-the-go use.
【Reliable Support & Package】Backed by a 3-year warranty and lifetime technical support. Includes: EMF detector ×1, USB cable ×1, manual ×1 (scan QR code for video guides). 24/7 customer service ensures hassle-free solutions!

Konrad Nowak –
Great EMF Detector for Multiple Uses!
I bought this EMF detector mainly out of curiosity, and it’s turned out to be really handy. The digital LCD screen is clear, and it’s easy to use right out of the box. The 3-in-1 functionality is awesome – it picks up electromagnetic fields, electric fields, and even temperature.I’ve been using it around the house to check for high EMF levels near appliances and wiring. It’s sensitive enough to give accurate readings indoors and outdoors. My son thinks it’s fun too, he’s been trying to use it for ghost hunting!The rechargeable battery is a big plus, no need to constantly buy replacements! Save the planet! It feels well-made for the price and the compact size makes it easy to carry around. Whether you need it for serious inspections or just for fun, this is a great little gadget. Highly recommend!
Mahnaz –
Reliable, Accurate, and Versatile EMF Detector – A Must-Have Tool!
I recently purchased the EMF Detector, Digital LCD EMF Meter, 3 in 1 Rechargeable Electromagnetic Field Radiation Detector, and I couldn’t be more impressed! This device is highly versatile and sensitive, perfect for indoor and outdoor EMF inspections.The LCD is bright, clear, and easy to read, even in low-light conditions, which makes it great for ghost hunting or other nighttime uses. I love that it’s rechargeable, eliminating the need to replace batteries constantly. The 3-in-1 functionality adds value as it detects a wide range of electromagnetic radiation with impressive accuracy.The build quality feels solid and durable, and the device is lightweight and portable, making it easy to carry around. It has helped me identify EMF sources in my home, ensuring a safer environment. Plus, it’s an exciting tool for ghost hunting – susceptible to even subtle fluctuations.I highly recommend this EMF detector to anyone looking for reliable equipment for EMF testing or paranormal investigations. It’s an excellent investment and works perfectly as advertised! 5 stars!
Jlyne Hanback –
Excellent EMF Detector that is highly sensitive and easy to use!
This EMF Detector is an outstanding tool for anyone seeking accurate and reliable measurement of electromagnetic field levels. Its precision comes from a built-in electromagnetic radiation sensor that provides clear data on an easy-to-read LCD display. Whether you’re testing for magnetic field radiation in mG/µT or electric fields in V/m, this device ensures dependable results every time.A standout feature is its Sound Light Alarm system, which activates when electric field values exceed 40V/m or magnetic field levels surpass 0.4µT or 4mG. The screen turns red, accompanied by flashing lights and a buzzer alarm – perfect for alerting you to potentially dangerous levels of radiation. If the sound becomes too much, simply press and hold the “AVG/VPP” button to silence it.This EMF meter is highly versatile, measuring a wide range of fields across various settings. From checking your TV and computer to investigating cell phone towers or even ghost hunting, this tool can handle it all. It also offers a convenient switch between average or peak readings and temperature units, making it incredibly user-friendly. Plus, it conserves power by automatically shutting down after 5 minutes of inactivity.Finally, the 36-month after-sale service and lifetime technical support offer peace of mind, knowing that any questions or issues will be swiftly handled. The package includes everything you need – detector, USB cable, and manual – making it a must-have for anyone serious about monitoring electromagnetic fields.Happy ghost hunting!
Maryll –
Easy to use, seems accurate
Simple to use and seems very accurate. Only drawback was the instruction manual was translated into English but someone who doesn’t speak English.
scott –
Simple to use and accurate
Bought this since my wife be affected by home power stations. Just wanted to see any elevated EMF from the power stations. Meter works great. Easy to read screen that turns red at elevated levels of EMF.
Jason C. Wise –
Microwave leakage
Didn’t find any ghosts lol, but i did check my microwave leakage 🙂
Pockets –
Surprised it rated my air at 100% immediately
I would expect that any air that had not been previously filtered would produce some particles for a sensitive filtration machine to register when first activated. I received a 100% clear report as soon as it was turned on which leaves me wondering if it lacks sensitivity.
Katie Heron Branca –
Quality EMF detector
Easy to use, good quality, durable, E field, H field and temperature sensor. Great battery life. Great price.
Trev –
Works