1.Wide Measurement and High Accuracy: Offers a wide measurement from 0.1M Ω to 2000M Ω with 6000 counts, ensuring accurate and reliable readings. This wide allows the tester to measure insulation resistance in various electrical components and systems, from low to very high resistance values. 2.Multiple Test Voltage Options: Provides four test voltage options (100V, 250V, 500V, 1000V), making it suitable for different testing requirements. The ability to select different test voltages ensures that the tester can accurately assess the insulation quality of various electrical devices, including transformers, motors, cables, switches, and appliances. 3.LCD Display with Data Hold Function: Features a clear LCD display that shows test results and includes a data hold function to ze readings for easier recording. The LCD display provides clear and easy-to-read measurements, while the data hold function allows users to pause the display to record important data without losing the reading. 4.Automatic Shutdown for Energy Efficiency: Automatically shuts down after about 15 minutes of inactivity, conserving battery life and reducing unnecessary power consumption. This feature helps extend the battery life of the tester, making it more efficient and cost-effective for prolonged use in the field.