Uni-T UT278A Clamp Earth Ground Tester

UT278A Clamp Earth Ground Tester

UT270 series can quickly and safely measure the grounding system without disco ecting 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.

Grounding resistance measurement in electricity, telecommunication, meteorology, oilfield, architecture and industrial electric equipment

$695.00 inc. GST

UPC 6935750527818
SKU UT278A Category Tags , ,
Sparky Tools


Features: Display count: 4 digits LCD display Jaw opening: 32mm Resistance measurement frequency: >1kHz Single measurement time: 1 second Current limit alarm: 1mA~499mA Current measurement frequency: 50Hz/60Hz RS-232: YES Visual and audible alarm: YES Jamming signal recognition: YES Over-range display: YES Data storage: 99 Power: 1.5V battery (LR6) x 4 (Not Included)   Specifications: Earth Ground Resistance (Ω): 0.01~0.099Ω  ±(1%+0.01) 0.1~0.99Ω  ±(1%+0.01) 1~49.9Ω  ±(1%+0.1) 50~99.5Ω  ±(2%+0.5) 100~199Ω  ±(3%+1) 200~395Ω  ±(6%+5) 400~590Ω  ±(10%+10) 600~800Ω  ±(20%+20) 800~1200Ω  ±(25%+30)   Leakage current (A): 0mA~9mA  ±(2.5%+1mA) 10mA~99mA  ±(2.5%+5mA) 100mA~299mA  ±(2.5%+10mA) 0.3A~2.99A ±(2.5%+0.1A) 3A~9.9A  ±(2.5%+0.3A) 10A~20A  ±(2.5%+0.5A) 3A~30A  ±(2.5%+0.5A)



Uni-Trend Group Limited is one of the leading testing meters and instruments companies in Asia. The group has presences in over 90 countries and allied with over 600 strategic business partners to provide its products and services. In China's testing meters market, Uni-T group has garnered over one third of the market share and has been the number one position in the market for 5 consecutive years. Uni-T Group provides technological products which are compliant to the global standards and the company has occupied a unique position in its high value added product segment in the market.
electrician tools

Additional information

Weight .8 kg
Dimensions 30 × 20 × 10 mm
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