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 appliances and 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 screen for easy reading. Features: 1. The EMF tester has two uses, testing both electric and magnetic field radiation. 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 screen for easy reading. 6. Simple operation, easy to operate with one hand, easy to carry and on-site measurement. 7. The environment temperature can be measured in two temperature units (°C and °F) Specification: Condition: Brand New Brand: SMART SENSOR Model: AS1392 Material: ABS Plastic Unit: mG (Electric Field); uT(Magnetic Field) Accuracy: ±5%(50Hz or 60Hz), uT(50uT to 200uT) Range: Electric: 0~2000mG; Magnetic: 0~200μT Resolution: 0.1mG, 0.01μT Alarm Threshold: 40mG, 0.4μT Temperature: 0~50°C/ 32~122°F Display: 4-Digit LCD Display Test Bandwidth: 30Hz-300Hz Number Of Axes: Single Axis Sensor Head Sample Rate: 0.5 Seconds Test Mode: Dual Mode Synchronous Test Overrange Indication: LCD Displays "HI" Working Temperature: 0~40°C Relative Humidity 0~80% Storage Temperature: -10~50°C Relative Humidity: 0~70% Power: 3 * 1.5V AAA Battery(not included) Weight: Approx. 108g / 3.8oz Size: Approx. 130 * 50 * 27mm / 5.1 * 2.0 * 1.1in Package List: 1 * EMF Meter