Constant 25ER Analog Earth Resistance Tester
Constant 25ER Analog Earth Tester
Features:
* Operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth bars
* Simplified earth resistance measurement method
* Self-Check facility for checking battery and lead wire connection
* Push switch buttons for smooth operation of the instrument
* Withstand voltage (1500VAC) for one minute between electrical circuit and housing case
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