Electromagnetic Field Radiation Detector Tester Emf Meter Rechargeable Handheld Portable Counter Emission Dosimeter Computer Features:One machine dual-use, simultaneous detection of electric and magnetic field radiation; sound and light alarm, automatic alarm beyond safety value; data lock, one-button lock radiation value; LCD graphic display radiation value trend; radiation evaluation, intimate reminder whether current radiation value is safe; appearance Stylish and easy to operate with one hand, easy to move or measure on site. Feature This 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 indoor and outdoor. It is equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the LCD digital display after processing by control micro-chip.One instrument with two uses,it can test the electric field and the magnetic field radiation at the same time.Sound-light alarm,when the test result exceeds the safe value, the instrument will alarm automatically.Data locking,one-key lock of the radiation value.LCD display of the values for easier reading.Radiation assessment, remind you whether the radiation value is safe or not.Keeping dataLow electricity promptAuto power-offFashionable design,easy on-hand operation, it's easy to carry and make field measurement.Specifications:Electric fiend:Unit: V/mPrecision: 1V/MRange: 1-1999V/mAlarm Threshold Value: 40V/mMagnetic fiend:Unit: TPrecision: 0.01TRange: 0.01-19.99TAlarm Threshold Value: 0.4TReading Display: 3-1/2 -digital LCDTest Bandwidth: 5Hz-3500MHzSampling Time: Approx. 0.4 SecondsMeasurement Mode: Dual mode at the same timeOver Range Indication: LCD display the maximum measurement rangeOperating Temperature: 0C-50C/30~122Operating Humidity: Relative Humidity