Specification: Functions: electric field measurement, magnetic field measurement, Temperature measurement Electric field measurement: Range: 1 V/m-1999 V/m Alarm threshold:>40 V/m Resolution: 1 V/m Magnetic field measurement: Range: t- t Alarm threshold: Zero point four T Resolution: 0.01 t Temperature measurement: Range: - 10C~70C Reading display: 3-1/2-bit LCD Test frequency bandwidth: 5Hz-3500MHz Sampling time: about 0.4 seconds Working humidity: relative humidity less than 80% Working voltage: DC4.5V Power supply: AAA1.5V * 3 (included Feature: 3 IN 1 EMF Meter: EMF tester has more uses than other testers, with the option of testing magnetic field radiation in mg/t, electric field in v/m, and ambient temperature in 2 units of C/F. This device can help you to check whether there is no radiation and constant temperature around the object under test, but it can not directly detect the RF value. Precise Measurement: Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip. Testing magnetic field radiation with optional units mG/T, the electric field with unit V/m. This EMF meter can not test the RF value. Sound-Light Alarm: When the testing result of the EMF detector exceeds the value(0.4T (4mG) or 40V/m), the indicator will be flashing and the screen will turn red , and the buzzer will alarm. If youre testing some quiet areas, you can close the buzzer first, avoid disturbing the others. Multifunction of Radiation Detector: Testing average or peak value(Maximum) reading, and one key hold the data for a view. Auto power off after 5 minutes without operation. Application occasions: Widely used in home radiation, irradiation processing enterprises, health epidemic prevention and other existence of ionizing radiation environment, personal received radiation dose supervision and protection occasions. Electromagnetic Radiation Test: ghost detector, mobile phone, computer, TV set, refrigerator and high voltage cable radiation test.Radiation protection product test: test effects of radiation-proof clothes, radiation-proof film and other prevention articles. Easy to Carry: Small pocket size and light weight design makes it more popular with users; the free charging cable makes it more convenient for you to use anywhere; cleaning cloth for cleaning after use. Package includes: 1 x Radiation Detector 1 x Manual