Product description: Insulation resistance meter is an ideal instrument to test electrical insulating materials, wires and cables, anti-static resistance measurements as well as other electrical products insulation resistance. Adopted the most advanced international high resistance, micro current components , with advantages of high accuracy, strong resolution, strong anti-interference ability, stable reading, small size, easy to carry and operate, and universal battery. It is recommended by Shanghai Electric Cable Research Institute (SECRI) as one of the essential equipment for production permit over the years Standard: • GB/T3048.5-2007 Technical parameters: • ZC-90: Rated voltage: 100V, 250V, 500V, 1000V Range: 105 ~ 2x1014Ω Applications: high insulation resistance measurement; electrical appliances, electrical equipment, electrical equipment, wire and cable insulation resistance measurement. • ZC-90E: Rated voltage: 100V, 250V, 500V, 1000V Range: 105 ~2x1016Ω Applications: exceeding high insulation resistance measurement, common wire and cable and XLPE(Cross Linked Polyethylene) cable measurements, insulation material resistivity measurement • ZC-90G: Rated Voltage: 10V, 25V, 50V, 100V, 250V, 500V, 1000V Range: 105~ 2x1017Ω Applications: Exceeding high insulation resistance measurement, common wire and cable and XLPE(Cross Linked Polyethylene) cable measurements, insulation material resistivity measurement. Weak current measurement, measurement of electronic components, optical measurement, bio-power measurement, atomic energy research • 31/2 digit display (with backlight), basic error: ± 1%, the built-in timer can be used to preset measuring time • Companied with a electrode box, enable to be used as rubber & plastic surface resistance meter and volume resistance meter (optional for users) Specifications: • Overall dimensions: 280×240×105mm , ZC-90G 320×290×115mm • Power supply: AC220V 50/60Hz 0.1A