AEMC 6416#2141.01 Ground CLAMP M Your unit is calibrated prior to shipment with a new nist-traceable calibration certificate with data The nist calibration provides you assurance your instrument meets manufacturers specifications. Your instrument is ready to use day one meeting most quality system standards Ground resistance tester 6416 model (clamp-on, alarm, memory) replacement for cat 2117.60 and cat 2117.61 Touch voltage display &ndash; alerts user to potential unsafe conditions Large multi-function, bright yellow organic display (oled) usable in all lighting conditions