TM-192 is capable of measuring the electromagnetic field radiation intensity produced from: Electric transmission equipment Power lines Microwave ovens Air conditioners Refrigerators Computer monitors Video/audio devices Specifications: Range: 20/200/2000 mG,2/20/200μT. Resolution: 0.01/0.1/1 mG or 0.001/0.01/0.1 μT. Frequency response: 30Hz to 2000Hz. Sensor: Triple Axis (X, Y, Z). Accuracy: 20 mG /2μT±(3.0%+30dgt) at 50Hz/60Hz. ± (2.5%+5dgt) at 50Hz/60Hz. ±(5%+5dgt) at 30Hz/2000Hz. Over load: 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 230g. (0.51 pounds) Dimensions: 173(L)*80(W)*32(H) mm. ( 6.82 x 3.15 x 1.25) inches