Metravi 250 V Digital Insulation Tester is a device ideal for Insulation Resistance Measurement of Electrical Equipment such as motors, transformers, machine, etc. The 250 V Digital Insulation Tester is specially designed for precaution against electrical hazards such as electrical shocks and short-circuits. The Digital Insulation Tester consists of a large LCD with a backlight display for visibility in darker environments, a test button, operating buttons, a rotary switch to set the voltage, and knobs with test leads. The Insulation Tester is used to connect the test leads to devices with knobs, and the tester is calibrated using the test button and the rotary switch. The digital insulation tester has the auto-off feature, data hold Function and overload protection. Product Attributes: Brand: Metravi Product: 250 V Digital Insulation Tester Insulation Resistance: 200 MOhm Model: DIT 99B Test Voltage Range: 250 V Measuring Method: 20MO - 1GW Reading: 1999 counts