Product description Insulation resistance tester with absorption ratio embedded real-time industrial microcomputer operating system, ultra-thin wire-shaped sheets header with the perfect combination of dot matrix liquid crystal display, the instrument is with a variety of voltage output level (250V,500V,1000V,2500V,5000V,10000V), high capacity, strong anti-interference, the pointer and digital synchronous display, AC-DC dual-use, simple operation, automatic calculation of various insulation index (absorption ratio, polarization index), all measured characteristics with the anti-power-down function . Technical index Measuring range and accuracy (Temperature, humidity: 235, 45 75%RH) Model BC2305 Rated Voltage 250V 500V 1000V 2500V 5000V Measuring Range 0.099.9M