UNI-T UT275 Clamp Earth Ground Tester UNI-T UT275 Clamp Earth Ground Tester Main description UT275 can quickly and safely measure the grounding system without disconnecting circuit ground lines or the need of auxiliary electrodes. It can measure resistance from 0.01Ω with a resolution of 0.001Ω. UT275 can also measure leakage current up to 30A. These clamps’double insulation design makes them durable tools for outdoor work and effective in blocking interference signals from the environment. Features of UT275 Clamp Earth Ground Tester ● Resistance limit alarm ● Auto range ● Low battery indication ● Data hold ● Data recall ● LCD backlight ● Auto calibration Display count 10000 Jaw opening 28mm Auto power off YES Data storage 30 Display type LCD Power 1.5V battery (LR6) x 4 Display 47mm x 28.5mm Product net weight 1.32kg