Measures EMF Radiation from high-power transmission lines, appliances, and electrical wires. Description This meter is used for measuring electromagnetic fields of extremely low frequency(ELF) of 30 to 300Hz. It is capable of measuring the electromagnetic field radiation intensity that is produced from electric transmission equipment, power line, air conditioner, refrigerator, computer monitor, video/audio device and so forth. Features Easy to operate, with accurate measurementsReliable gauss meter for measuring electrical fields9V batteryIncludes certificate and user manualComes with a carrying case and black protection boot Specifications - Display: 3-1/2 digits LCD, maximum reading 1999. - Range: 200/2000 mG,20/200μT. - Resolution: 0.1/1 mG or 0.01/0.1 μT. - Frequency response: 30Hz to 300Hz. - Sensor: Single Axis - Accuracy: ± (2.5%+6dgt) at 50Hz/60Hz.- Overload: LCD display "OL". - Sample rate: 2.5 times per second. - Battery: 9V NEDA 1604, IEC 6F22 or JIS 006P. - Battery life: Approximate 100 hours. - Operating temperature & humidity: 5℃to 40℃,below 80% RH. - Storage temperature & humidity: -10℃ to 60℃, below 70%. - Weight: About 170g. - Dimensions: 130(L)*56(W)*38(H)mm. MG-300 User Manual