SpecificationsName:EMF Radiation MeterAccuracy: 1V/mRange: 11999V/mAlarm threshold: 40V/mReading display: 3-1/2digit LCDMeasurement bandwidth: 5Hz3500MHzOperation temperature: 050Dimensions:61*25*134mm/2.40*0.98*5.28inchDescriptionSafety Protection:This EMF detector can test electric field ranges from 1 to 1999V/m and magnetic field ranges from 0.01 to 99.99T/0.1 to 999.9mG strength simultaneously. It also measures ambient temperature from 32 to 122. (Note: This EMF meter cannot test RF values.)Sound-Light Alarm: If the test result exceeds a safe level (0.4T/4mG) or 40V/m), the EMF meter will emit a beep alarm (Beeping can be turned off), turn the screen red, and start flashing an indicator to alert you to high levels of radiation.Multi-Functional: The EMF tester featuring a LCD backlit screen display, one-key hold for average or peak (Maximum) value reading, temperature unit switch, reset to zero, beep alarm switch, low battery indicator, and auto power off after 5 minutes of idleness.Versatile Uses: The EMF detectors can be widely used to detect EMFs from various electrical appliances in home and workplace, such as TV, computer, microwave oven, refrigerator, outlets and light switches, etcPackage 1PC EMF Radiation Meter