Features This instrument has dual‑purpose functions, can simultaneously detect electric and magnetic field radiation. Support color screen display, with sound and light alarm, automatic alarm when the safety value is exceeded. Support data lock, one key lock radiation value. The LCD graphic shows the trend of the radiation value. With electromagnetic radiation assessment, it shows that the current radiation position value is at a safe level. Stylish appearance, small size, can be operated with one hand, suitable for on‑site measurement. Specification: Item Type: Electromagnetic Radiation Tester Material: ABS Size: Approx. 133.47x59.98x25mm / 5.3x2.4x1.0in Technical IndexProjectElectric FieldMagnetic FieldUnitV/MμTAccuracy1V/M0.01μTRange1V/M-1999V/M0.01μT-19.99μTAlarm Threshold40V/M0.4μTReading Display3-1/2 Digit LCDTest Bandwidth5Hz-3500MHzSampling TimeAbout 0.4sMeasurement ModeSimultaneous Dual ModeOverload IndicationMaximum Measurement Range on LCDOperating Temperature0℃-50℃Working HumidityRelative Humidity <80%Operating Voltage3.7V Lithium Battery, 600mAh Scope of Application: 1. Electromagnetic radiation monitoring: houses, apartments, offices, outdoors, industrial sites 2. Electromagnetic radiation test: mobile phone, computer, TV, refrigerator, high-voltage cable radiation test 3. Radiation protection product test: the test effect of radiation protection clothing, radiation protection film and other protective equipment Package List: 1 x Electromagnetic Radiation Tester 1 x USB Cable 1 x Manual Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List 1 x Electromagnetic Radiation Tester 1 x USB Cable 1 x Manual