Constant 250ER Digital Clamp-on Earth Resistance Tester
Constant 250ER Digital Clamp-on Earth Resistance Tester
Features:
* Power measurement of 3-phase 3-wire circuit, 3-phase 4-wire circuit and single phase circuit
* Measure V, A, W, VA, VAR, kWh, Power Factor (Cos j), and Hz
* Double scales analogue bar graph to display voltage &...





