Feature 1Widely Used: This electromagnetic radiation detector is widely used to test and understand the electromagnetic radiation situation indoors and outdoors, and can test the magnetic field radiation, the electric field radiation and the temperature of the test environment. 2LCD Display: The tester has a built in electromagnetic radiation sensor, which can display the radiation value on a clear LCD digital display after being processed by the control chip. Large and clear LCD display, easy to read values. 3Compact Size: This electromagnetic field tester only weights 200g / 7.1oz, and the right size that you can carry it effortlessly and one handed operation. 4Sound and Light Alarm: When the detection result exceeds the safe value, the instrument will automatically alarm. Let you easily and quickly use it to measure radiation. 5Flashlight Function: This electromagnetic radiation detector equipped with flashlight function, so you can see the value clearly in the dark. Suitable for all kinds of dark environments.Item Type: Electromagnetic Radiation DetectorGross Weight: 200g / 7.1ozMaterial: ABSBattery: 6F22 9Vx1 (delivered without battery)Automatic Shutdown: No work within 10 minutesOperating Environment: 0-40/32-104, relative humidity 45%-80%Frequency Range: 5Hz-3500MHzMagnetic Field Strength Measurement Range: 0.1-199.9mG/0.01-19.99TResolution: 0.1mG/0.01TAlarm Threshold: >4.0mG/>0.4TElectric Field Strength Measurement Range: 1-1999V/MResolution: 1V/MAlarm Threshold: >40V/MAmbient Temperature Measurement Range: 0-50/32-122Resolution: 1C/FAccuracy: 1.5/3Uses: used to measure the radiation of TVs, induction cookers, rice cookers, refrigerators, computers, electrical appliances, wires, etc. Package List: 1 x Electromagnetic Radiation Detector1 x Storage Bag1 x Instruction Manual