Feature 11. Electromagnetic field tester: 2-in-1 function, which can test both electric field radiation and magnetic field radiation. 22. Sound and light alarm: When the detection result exceeds the safe value, the instrument will automatically alarm. Relative humidity: <80%. 33. Digital display: LCD displays numerical values for easy reading. 44. Data lock: Key to lock the radiation value. Test bandwidth: 5Hz-3500MHz Working temperature: 050.Unit Electric field: V/m, magnetic field TAccuracy Electric field: 1V/m, magnetic field 0.01TRange Electric field: 1-1999V/m, magnetic field 0.01-19.99TAlarm threshold Electric field: 40V/m, magnetic field 0.4TReading display: 3-1/2 digit LCD displayTest bandwidth: 5Hz-3500MHzSampling time: about 0.4 secondsTest mode: dual-mode testOverload prompt: LCD displays "1"Data Lock: Automatic shutdown: Average and Peak: Low power reminder: Operating temperature: 0-50Operating humidity: below 80% relative humiditySize: 63.6*31*125.8mmWeight: 146gNoteDue to the lighting effects and shooting angles, there is color difference in the product, please understand.Due to manual measurement, there is a tolerance in the product size.