Specifications

Range

Best Accuracy

Model

UT278A

Earth Ground Resistance (Ω)

0.01Ω-0.099Ω

±(1%+0.01)

0.1Ω-0.99Ω

±(1%+0.01)

1.0Ω-49.9Ω

±(1%+0.1)

50Ω-99.5Ω

±(2%+0.5)

100Ω-199Ω

±(3%+1) 

200Ω-395Ω 

±(6%+5)

400Ω-590Ω

±(10%+10)

600Ω-800Ω

±(20%+20)

800Ω-1200Ω

±(25%+30)

Leakage Current(A)

0mA-9mA 

±(2.5%+1)

10mA-99mA 

±(2.5%+5)

100mA-299mA 

±(2.5%+10)

0.30A-2.99A 

 ±(2.5%+0.1)

3.0A-9.9A 

±(2.5%+0.3)

10.0A-20.0A 

±(2.5%+0.5)

3A-30A

±(2.5%+0.5)

Features

Display Count

4 Digits Display LCD

√

Auto Range

√

Jaw Capacity

32mm

Single Measure Time

1 Second

√

Resistance Measurement Frequency

>1KHz

√

Current Measurement Frequency

50Hz/60Hz

√

Resistance Limit Alarm

1Ω-199Ω

√

Current Limit Alarm

1mA-499mA

√

Beeper and Light Alarm

√

Jamming Signal Recognition

√

Over-Range Display

√

Low Battery Indication

√

Data Logging

99