Features
The Greenlee CMGRT-100A Clamp-On Ground Resistance Tester is a hand-held testing device intended to evaluate grounding systems. It has two modes:Reads ground resistance down to 0.10 Ω
Fully auto-ranging with data hold to capture readings
Accessories included: Molded carrying case, 9V Alkaline Battery and calibration verification loop
Impedance function capable of testing 4 separate frequencies (50Hz, 60Hz, 128Hz, & 2083Hz)
Widest operating temperature range ( - 4 to 131°F) in the industry
Ground Resistance Measurement: .01 to 1500 ohms
Measurement Category: Cat IV: 600V
Operation Type: Hand Held
Founded in 1862, Greenlee Tools got its start as a toolmaker when two brothers needed to manufacture their invention (a special drill surrounded by chisels). With the success of this effort, the Greenlee brothers quickly took on making other woodworking tools and other machinery including a machine that laid track for the railroad. In the mid-80s and beyond, Greenlee added on other toolmakers and diversified the kinds of tools they make and now Greenlee manufactures tools used by tradesmen in all vocations from communications to hydraulic pumps, plumbing, telecom, test equipment and many more. Greenlee is widely recognized as an industry leader for quality hand and industrial tools.