This radiation survey meter can test electric field radiation and magnetic field emission to reach the optimal test result. It is used to test and learn electromagnetic radiation situation indoors and outdoors. It is equipped with a built-in electromagnetic radiation sensors which can display the radiation value on LCD digital display after processing by the control micro-chip. You can make reasonable processing or taking effective prevents measures toward the electromagnetic radiation according to the test result. If you need it, come and have a try, it will not let you down. Features: Compact size, easy to carry and does not occupy an area, take it with you to say goodbye to the traditional heavy and difficult to carry size. Adopt large LCD display screen, the value can be clearly displayed on the screen and easier for you to read, and give you a better experience. This detector can simultaneous detection of electric and magnetics field radiation for you, allows you to get two important values in one test. Sound and light dual alarm function, it will automatic alarm when the test value over the safety value, the screen turns red and sounds an alarm. Equipped with data hold function, you can short press "Power / HOLD" button and the reading will be locked, so that users can record or view measurement results without worrying that values will be lost due to changes in the measurement process. It provides greater flexibility and convenience, enabling users to better process and analyze measurement data. Radiation assessment function, which can indicating if current radiation value is at safety level, three color light indicating the current magnetic field states: safety, alert, avert, and if the electric field data over the safety state, the screen will become red to alarm you. Wide applications, this tester can be used for electromagnetic radiation monitoring of House and apartment, office, outdoor and industrial site, electromagnetic radiation test of mobilephone, computers, TV set, refrigerator and high voltage cable radiation test, radiation protections product test such as test effects of radiation proof clothes, radiation proof film and other prevents. Specifications: Material: ABS Unit: Electric field: V/m Magnetics field: uT/mG Accuracy: Electric field: 1V/m Magnetics field: 0.01uT/0.1mG ranges: Electric field: 1-1999V/m Magnetics field: 0.01-99.99uT/0.1-999.9mG Alarm threshold: Electric field: 40V/m Magnetics field: 0.4uT/4mG Measurement bandwidth: 5Hz-3500MHz Sampling time: about 0.4s Overload indication: max value of measurement ranges on LCD Operating temperature: 0-50 Operating humidity: relative humidity below 80% Working voltage: 4.5V Power: 3 * AAA battery (NOT INCLUDED) Package size: 130 * 64 * 27.5mm / 5.1 * 2.5 * 1.1in Package weight: 125g / 4.4ounce Packing List: 1 * Electromagnetic Radiation Tester