Feature: 1. HIGH ACCURACY: EMF detector with built in electromagnetic radiation sensor, has high measurement accuracy, ensuring your safety. 2. SOUND LIGHT ALARM: When the test result exceeds 0.4uT 4mG or 40Vm, the screen will display Alarm and Harmful, and the buzzer will alarm. 3. MULTI FUNCTION: This EMF meter can test average or peak readings, save data with one button for viewing, switch between uT and mG units, measure temperature (℃ ℉), indicate low battery, automatically turn off power after 10 minutes. 4. LCD DIGITAL DISPLAY: Large backlit color LCD enables this electromagnetic radiation detector to be clearly viewed during the day or in the dark. 5. WIDE USAGE: Widely used for testing television, computer, printer, microwave, electric fan, refrigerator, mobile signal tower, low frequency household appliance, etc. Specification: Item Type: EMF Meter Material: ABS Model: EMF01 Working Height: 2000m Measurement Method: Electromagnetic induction Display Screen: VA reverse display color screen Maximum Display: 9999 Sampling Rate: About 0.4s Measurement Range: V/M: 0-9999, uT: 0-74, mG: 0-740 Resolution: V/M: 1, uT: 0.01, m​ g: 0.1 Bandwidth: 5-3500MHz Power Supply: AAA battery x 3 (shipped without battery) Use: Widely used in home, office, living area, industrial equipment, distribution room, high speed railway, signal base station, etc.. Package List: 1 x EMF Meter1 x Cross Screwdriver1 x Storage Bag1 x User Manual