Precision: Electric: 1V/m, Magnetic: 0.01T Range: Electric: 1~1999V/m, Magnetic: 0.01~19.99T Alarm Threshold: Electric: 40V/m, Magnetic: 0.4T Testing Frequency: 5Hz~3500MHz Operating Temperature: 0C~50C Operating Humidity: 80% Operating Voltage: 9V Dimensions: 63.6 * 31 * 125.8mm Weight: 146g 1. TWO USES A dual-purpose device with EMF metering can test both electric field radiation and magnetic field radiation simultaneously. MG/T for testing magnetic field radiation, V/m for testing electric field radiation. 2. AUTOMATIC ALARMS Sound and light alarms activate when electric field values exceed 40V/m or magnetic field values exceed 0.4T/4mG. Press the "AVG/VPP" button to mute the sound. 3. RADIATION ASSESSMENT Radiation assessment helps determine if radiation levels are safe or not. It is used to test and learn about electromagnetic radiation situations indoors and outdoors. Suitable for testing TV sets, computers, refrigerators, printers, microwave ovens, mobile towers, low-frequency devices, ghost hunting equipment, etc. 4. ONE-BUTTON LOCK Data locking with one-button operation for radiation values. LCD screen displays values for easier reading. Products from LUOLV's store