UNI-T UT278A Clamp Earth Ground Tester (0.01~1200Ω)

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)

Power: 1.5V battery (LR6) x 4

Display: 47mm x 28.5mm

Product color: Red and grey

Product net weight: 1160g

Product size: 285mm x 85mm x 56mm

Standard accessories: Batteries, test ring, tool box

Features:

Jaw opening: 32mm

Auto power off: No

Data storage: 99

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

Over-range display: Yes

Jamming signal recognition: Yes

Data storage: 99

Category ratings: CAT III 300V