Insulation series digital tester which adopts low loss high ratio of inductance energy storage DC voltage converter can change 12V voltage into 250V / 500V / 1000V DC voltage. It can be applied in motors, cables, mechanical and electrical equipment, telecommunications equipment, power facilities and other insulation resistance testing areas. Specifications: Color: Red / Green (Optional) Material: ABS With Automatic Shutdown Function: It will automatically shut down after 15 minutes of inactivity Display: 90 x 48mm LCD display, the maximum display is "1999". Over Range Indication: Only the highest digit shows "1" when the upper limit is exceeded. Measurement Method: Double integral type A / D conversion. Sampling Rate: About 3 times /second. Power Consumption: Power consumption of empty load test <300mw. Using Environment: Temperature 0 ℃ -40 ℃, humidity 30% RH-85% RH. Output Voltage: 250 / 500 / 1000V Short Circuit Current: <1.6mA Median Resistance: 250V/500V: 2 MΩ, 1000V: 5MΩ Item Size: 165 * 120 * 57 mm / 6.5 * 4.72 * 2.25 inch Item Weight: 550g / 19.4oz Package Size: 208 * 170 * 70 mm / 8.19 * 6.69 * 2.76 inch Package Weight: 715g / 25.22oz Package List: 1 * Digital Megohmmeter 2 * Test Cable 2 * Crocodile Clip 1 * Manual(English)