Feature: 1. MEASURING RANGE: High voltage insulation resistance tester with a measuring range of 0.005MΩ‑10.0TΩ, support slope, filtering, voltage, capacitance, and current test. 2. WATERPROOF BOX: This insulation resistance meter has a waterproof outer box, shockproof and impact resistant, and can be used in various harsh environments. 3. LCD DISPLAY SCREEN: The insulation resistance test box adopts a high definition LCD display screen, with all functions displayed on the same screen, with rich colors. 4. SIMPLE CONNECTION: The inner upper cover of the tester is marked with wiring diagram to reduce wiring errors, greatly improve electrical connection efficiency. 5. BUILT IN BATTERY: The insulation resistance tester has a built in 5200mAh rechargeable lithium battery, ensuring long endurance, can be used anytime, anywhere. Specification: Item Type: Insulation Resistance Tester Model: ETCR3500B Insulation Resistance Range: 0.005MΩ-10.0TΩ Short Circuit Current: 5mA Maximum Working Power Supply: 1 x 5200mAh Rechargeable Lithium Battery (built in battery) Polarization Index Test: Yes Absorption Ratio Test: Yes Capacitance Testing Range: 10nF-25uF: Accuracy ± 10%rdg±10nF Current Testing Range: 0.01nA-7mA; Accuracy ± 5%rdg±0.5nA Custom Setting Time: 10s-3600s Test Timer: Automatically record test time Timing Range: 0s-9999s Upload Function: Upload the stored test data to the computer through a USB comm cable. Automatic Shutdown Function: Automatically shut down after 15 minutes of power on Protection Level: IP65 Close the cover, IP40 open the cover Working Environment: -20-50℃; 80%RH Storage Environment: -25-65℃; 80%RH Insulation Resistance: 50MΩ (1000V) (between the test line and the shell) Suitable Parameter: AC 3kV 50Hz 1min (between test circuit and enclosure). Package List: 1 x Insulation Resistance Tester1 x Power Plug1 x Adapter1 x USB Cable3 x Test Cables1 x Measuring Pen1 x Crocodile Clip1 x Hook1 x Cloth Bag1 x User Manual1 x Accessory