FeaturesLarge 20000 count LCD with backlightKelvin-type alligator clips with solid copper contacts assure low-resistance connection to the cable being measuredAutomatic temperature compensation for maximum accuracy and convenienceAutomatic power off to maximize battery lifeMeasures length of cable without removing it from the spool, counting turns or weighing the spool20 pre-set cable sizes plus 8 user-programmable settingsPushbutton selection of copper or aluminum cableDisplays length in feet or metersFor AWG-kcmil wire and cableReplacement part - CLM-ROD calibration rods (pair) and CLM-CLIPS Kelvin clips (pair)Powered by (6) 1.5 V AA batteries