Features Data Lock: Data hold, clear LCD display, one key to lock the radiation value, easy to read the value. Radiation assessments remind you whether radiation values are safe. Built-in electromagnetic radiation sensor, which can display the radiation value on a clear LCD digital display after being processed by the control microchip. Radiation Assessment: Reminds you to determine if radiation values are within safe limits. When the test result exceeds the safe value, the instrument will automatically sound and light alarm. Easy to Use: A dual-purpose instrument can simultaneously test the electric field and magnetic field radiation. Fashion design, small size, simple operation, easy to carry, convenient for on-site measurement. Large and clear LCD display for easy reading. Measuring Radiation: Application range Electromagnetic radiation detectors are mainly used in electrical appliances in life, which can effectively help people stay away from radiation sources and protect them from radiation hazards! Electromagnetic Radiation Test:mobile phone, computer, TV, refrigerator and high-voltage cable radiation test. Radiation protection product test: the test effect of radiation protection clothing, radiation protection film and other protective equipment. Specification: Model: GM3120 Material: Plastic Color: Shown As Picture Unit: V/m (Electric Field); μT(Magnetic Field) Accuracy: Electric: 1V/m; Magnetic: 0.01μT Range:  Electric: 1-1999V/m; Magnetic: 0.01-99.99μT Alarm Threshold: Electric: 40V/m; Magnetic: 0.4μT Display: 3-1/2 LCD Display Test Bandwidth: 5Hz-3500MHz Sample Time: About 0.4 Seconds Test Mode: Dual Mode Synchronous Test Overrange Indication: LCD Displays "1" Working Temperature: 0°~50°C Relative Humidity: <80% Storage Temperature: -10~50°C Relative Humidity: 0~70% Power: 1 * 9V 6F22 Battery(excluded) Size: Approx.12.5*6*3cm/4.9*2.4*1.2in Package Weight: Approx.164g/5.8oz Package List: 1 * Radiation Tester Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List