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. Specifications of UT275 Clamp Earth Ground Tester Specifications Range UT275 Earth Ground Resistance (Ω) 0.01~0.099Ω ±(1% 0.01) 0.1~0.99Ω ±(1% 0.01) 1~49.9Ω ±(1.5% 0.1) 50~99.5Ω ±(2% 0.5) 100~199Ω ±(3% 1) 200~395Ω ±(10% 5) 400~590Ω ±(20% 10) 600~800Ω 600~1000Ω ±(25% 20) 800~1200Ω Leakage current (A) 0mA~9mA 10mA~99mA 100mA~299mA 0mA~299mA ±(2.5% 2mA) 0.3A~2.99A ±(2.5% 100mA) 3A~9.9A 10A~20A 3A~30A ±(2.5% 300mA) Display count 10000 Jaw opening 28mm Visual and audible alarm Auto power off √ Jamming signal recognition Over-range display Data storage 30 Display type LCD Ω A display General Characteristics Power 1.5V battery (LR6) x 4 Display 47mm x 28.5mm Product net weight 1.32kg Product size 293mm x 90mm x 66mm Standard accessories Batteries, test ring, English manual Standard individual packing Gift box, tool box Standard quantity per carton Standard carton measurement Standard carton gross weight
