ETCR2000A+ 0.01-200ohm 65*32mm 99 Sets Stored Data Clamp-On Digital Ground  Resistance Tester With Alarm Function Feature:  NEW Type 2000+ Series Clamp Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster.  NEW Type 2000+ Series Clamp Earth Resistance Tester is another perfect upgrade on old models. The performance contrast of new and old products shows below:     Technical Specifications                      Function                     Ground resistance test, Loop resistance test                           Power Supply                     6VDC 4 PCS of AA Alkaline batteries                           Resistance Range                     0.01-1200Ω                           Resistance Resolution                     0.001Ω                           Highest Resistance Accuracy                     ±1%±0.01Ω                           Data memory                     99 Sets                           Alarm Threshold Setting Range                     Resistance: 1-199Ω                           Alarm Sound and Light                     “Beep-beep-beep” alarm tone, Alarm Symbol Flashing, Press AL key to turn on, turn off Alarm or set Alarm Threshold.