This meter can test 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.Features:One EMF Tester for testing the magnetic field radiation and temperature at the same time.Measure radiation of high voltage power lines, appliances, electrical wires.Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically.Data hold and max measurement, one-key lock the radiation value.Large & clear LCD display of the values for easy reading.Easy to operate with easy one-hand operation, easy to carry and make field measurement.Can measure the environment temperature with 2 temperature units ( and ).Specifications: Name: SMART SENSOR Color: Blue + Black Material: ABS PlasticUnit: mG / T (Magnetic Field)Accuracy: 5% (50T to 200T)T at 50Hz or 60HzRange: Electric: 02000mG; Magnetic: 0200TResolution: 1mG, 0.1TAlarm Threshold: 40mG, 0.4TTemperature: 050 / 32122Display: 4 digits LCD DisplayTest Bandwidth: 30Hz-300HzNumber of Axis: Single Axis Inductive HeadSampling Rate: 0.5 SecondsTest Mode: Bimodule Synchronous TestOver Range Indication: LCD Displays "HI"Operating Temperature: 050, Relative Humidity 080%Storage Temperature: -1050, Relative Humidity: 070%Power Supply: 3 * 1.5V AAA Battery (NOT Included)Item Size: Approx. 130 * 50 * 27mm / 5.12 * 1.97 * 1.06in (L * W * H)Item Weight: Approx. 74g / 2.62ozPackage Size: Approx. 22 * 15 * 3.5cm / 8.66 * 5.91 * 1.38in (L * W * H)Package Weight: Approx. 108g / 3.82ozPackage List:1 * Electromagnetic Radiation Detector1 * User Manual (English)