Uni-T Ut275 Clamp Earth Ground Tester

Earth ground resistance: 1200Ω; Current: 30A; Jaw opening: 28mm; Specifications of UT275 Clamp Earth Ground Tester Specifications Range UT275 Earth Ground Resistance (Ω) 0.01~0.099Ω{phone=100101099}Ω ±(1%+0.01) 1~49.9Ω ±(1.5%+0.1) 50~99.5Ω{phone=205100199}Ω ±(3%+1) 200~395Ω{phone=105400590}Ω ±(20%+10) 600~800Ω 600~1000Ω ±(25%+Ω 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