UT278A+ Auto Range Clamp Earth Ground Tester Uni-T

The UT278A+ 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. These clamps double insulation design makes them durable tools for outdoor work and effective in blocking interference from the environment.

Auto range

Data hold

Data recall

LCD backlight

Resistance limit alarm

Low battery indication

Auto calibration

Rating: CAT III 300V

Certifications: CE, UKCA