Technical Specifications Display: LCD 3 1/2 digits (2000 counts), with unit Data Hold Indication: H symbol appears on the display Power supply: 9V DC (6 x 1., 5V AA battery) (Not provided by seller) Accuracy is specified for a period of one year after calibration and at 18℃ to 28℃, with relative humidity Accuracy specifications take the form of : ±([% of Reading] + [number of Least Significant Digits]) Range: 20Ω / 200Ω / 2000Ω Resolution: 10mΩ / 100mΩ / 1Ω Accuracy: ± (2%+2) (or ± 0., 1Ω) Test Frequency: 1kHz LED used as normally working indicator under high voltage condition. The product is with carrying case and belt, which is easy to carry and use. Megger Insulation Tester 15Kv at Eldon Berthold blog insulation resistance meters digital megger meter ... – Grandado it can also be used to test ACV,resistance which is less than 200Ω, and test for continuity. You can use it to test transformer,motor,cable,switch,electrical appliance as well as to do insulation resistance test., Features 1., True measurement of speaker systems actual impedance at 1kHz 2., Three test ranges (20Ω / 200Ω / 2000Ω) allow testing of home theater and commercial sound systems., 3., Convenient protable battery operation., 4., Low battery indication 5., Data hold function 6., Timer function for easier operation. Test voltage can be changed by the rotary switch. For insulation resistance test,you can change the test voltage among 250V,500V and 1000V. It owns data hold function, auto power off. You get three test voltage options - 250V, 500V, and 1000V - selected easily with the rotary switch. But here's the cool part: it also works as an audio... Test voltage among 250V, 500V and 1000V. Battery Operated Meter EM480B Digital Audio Meter Test Range Resistance Impedance Tester
