Feature:1. Accurate Detection: Utilizing advanced technology, this meter can accurately measure the radiation value of computers and other electromagnetic radiation sources to ensure user safety.2. Radiation Protection: Helps children and pregnant women at home to avoid prolonged exposure to electromagnetic radiation and provides a healthy electromagnetic environment.3. Convenient Portability: Designed to be handheld for easy carrying and use, allowing for radiation detection anytime, indoors or outdoors.4. Multi Functional Application: Suitable for detecting electromagnetic radiation from computers, mobile phones, microwave ovens, and other sources to help users better understand their surrounding environment.5. Sound and Light Alarm: Ensures safety and peace of mind by triggering the alarm and displaying a red backlight on the LCD when detecting excessive electromagnetic radiation.Specification:Item Type: Electromagnetic radiation meterMaterial: ABSWeight: Approx. 98g / 3.5ozElectric Field Unit: V/m (volts/meter)Electric Field Accuracy: 1V/mElectric Field Range: 1V/m-1999V/mElectric Field Alarm Threshold: 40V/mMagnetic Field Unit: T(micro Tesla)Magnetic Field Accuracy: 0.01TMagnetic Field Range: 0.01T-99.99TMagnetic Field Alarm Threshold: 0.4TReading Display: 3-1/2digit LCDMeasurement Bandwidth: 5Hz to 3500MHzSampling Time: Approx. 0.4 secMeasurement Mode: Simultaneous use of dual modeOverload Indicator: Maximum value of measurement range on LCDOperating Temperature : 0C-50COperating Humidity : Less than 80% relative humidityOperating Voltage: 3VBattery: 2 x 1.5V AAA battery(not included)Application: Home, office, neighborhood substation, signal base station.Package List:1 x Electromagnetic Radiation Meter1 x Screwdriver1 x Manual