1The EMF tester has two uses, testing both electric and magnetic field radiation. 2This product can measure the radiation of high voltage power lines, electrical appliances and wires. 3Sound and light alarm, when the test result exceeds the safe value, the instrument will automatically alarm. 4Data retention and maximum measurement, one button to lock the radiation value. 5Large and clear LCD display screen for easy reading. Features: 1. The EMF tester has two uses, testing both electric and magnetic field radiation. 2. This product can measure the radiation of high voltage power lines, electrical appliancesand wires. 3. Sound and light alarm, when the test result exceeds the safe value, the instrument will automatically alarm. 4. Data retention and maximum measurement, one button to lock the radiation value. 5. Large and clear LCD display screenfor easy reading. 6. Simple operation, easy to operate with one hand, easy to carry and on-site measurement. 7. The environmenttemperature can be measured in twotemperature units (C and F) Specification: Condition: 100% New : SMART SENSOR Model: AS1392 Material: ABSPlastic Unit: mG(Electric Field); uT(Magnetic Field) Accuracy: 5%(50Hz or60Hz), uT(50uT to 200uT) Range: Electric: 0~2000mG; Magnetic: 0~200T Resolution: 1mG, 0.1T Alarm Threshold: 40mG, 0.4T Temperature: 0~50C/ 32~122F Display: 4-Digit LCDDisplay Test Bandwidth: 30Hz-300Hz Number Of Axes: Single Axis Sensor Head Sample Rate: 0.5 Seconds Test Mode: Dual Mode Synchronous Test Overrange Indication: LCDDisplays "HI" Working Temperature: 0~40C Relative Humidity 0~80% Storage Temperature: -10~50C Relative Humidity: 0~70% Power: 3 * 1.5V AAABattery(not included) Weight: Approx. 108g / 3.8oz Size: Approx. 130 * 50 * 27mm / 5.1 * 2.0 * 1.1in Package List: 1 * EMF Meter