Greenlee TESTER, GROUND ROD (CALIBRATED)

Measure Grounding Circuit Performance Without Disrupting Service. Calibrated unit reads ground resistance down to 0.10 O Fully auto-ranging with data hold to capture readings. Accessories include molded carrying case, 9V Alkaline Battery and calibration verification loop. Impedance function capable of testing 4 separate frequencies (50Hz, 60Hz, 128Hz, and 2083Hz). Widest operating temperature range ( - 4 to 131F) in the industry.