YD9830 Grounding Resistance TesterDetailed product description：

Characteristics of YD9830 Grounding Resistance Tester:

Arbitrary setting of constant current output
3 sets of test memory modes
The upper and lower limits of resistance can be set arbitrarily
Simultaneously display test current, resistance, and time
Optional RS232 interface and PLC interface
Technical parameters:
Output current: 3-25A
Current accuracy: ± (3%+3 words)
Test resistance: 0-300m Ω
Resistance accuracy: ± (2%+3 words)
Resolution: 1m Ω
Test time: 0-99.9s
Dimensions: 330 × 105 × 400 (mm)