This is a 2000-count auto range digital insulation resistance tester with low resistance test, high voltage and low battery indication. It adopts latest design and very large-scale integration and digital circuits, combined with measurement functions of insulation resistance, DC voltage, AC voltage. It has advantages such as high precision, stable performance, and simple operation. It is used for insulation resistance measurement of various electrical equipment and insulation materials, such as transformers, motors, cables, switches, electrical appliances. Test Voltage: 100V/250V/500V/1000V- 5GΩ Display Count: 1999, LCD Backlight Auto Range Low Battery Indication Alarm Indication and Buzzer High Voltage Indication Overload Indication Auto Discharge Test Voltage Vice Display Standard Accessories: Test Lead, Probe, Alligator Clip, Batteries, Carrying Bag, Gallus, Test Report