1. Wide range of measuring voltage can test up to 1000G (Max 2000G) insulation resistance
2. Three and a half bit LCD digital display of insulation resistance value
3. automatically shift resistance measuring range
4. environment temperature can be measured
5. self-clocking function short buzz every 15 seconds
6. automatically calculate and save R15S R60S R600S DAR and Polarization Index
7. Output short-circuit current larger than 5mA (meet fast charging request to capacitive load)
8. strong anti-interference ability stable and reliable reading
9. perfect protection safe for operation
10. powered by rechargeable Li-battery auto power off when battery energy is not enough
