Check the listing for details. EMF Meter Rechargeable Electromagnetic Field Radiation Detector Handheld Digital. Condition: New. Listed at 29.99 USD. 【Precise Measurement】The EMF Meter detector is a built-in electromagnetic radiation sensor, which can display the radiation value on a clear LCD digital display by controlling the microchip. Optional unit mG/µT test magnetic field radiation, test electric field V/m.【Sound light alarm】When detection electric field value and magnetic field result exceeds the value (40V/m or 0.4µT (4mG)), the LED screen turns red, the indicator light flashes, and the buzzer alarms. If you find it noisy, you can long-press the second button to turn the sound off or on.【Multi function】short press the second button to switch the test average or peak readings, short press the first button, and HOLD appears fixed data for viewing.【Widely used 】EMF Meter Radiation testing for TVs, computers, printers, microwave ovens, refrigerators, cell phone towers, low-frequency home appliances, and ghost hunting. Turn on/Turn off/Data HoldLong press this button to turn on/off the detectorAfter power on, short press the power on "HOLD", reading will be locked, and the "HOLD" icon will be displayed on the screen. Short press again to unlock the reading and the "HOLD" icon disappearsAverage and PeakLong press this button to turn the buzzer on or off, there will be a horn symbolshort press of this button toggles between average or peak mode. Average mode displays "AVG" and peak mode displays "VPP".Test temperatureLong press this button to switch the magnetic field unit between μT and mG.Short press this button to switch temperature units between ℃ and ℉.Clear LCD displayWhen detection result exceeds the value 0.4µT (4mG) or 40V/m，The display will turn redTest magnetic and electric fields.When detection result exceeds the value 0.4µT (4mG) or 40V/m, The display will turn redUSB charging, reusable charging, easy to use