Electrical Megohmmeter Accurate Measurement Insulated Digital Grounding Resistance Tester Item Type: Resistance Tester Material: ABS Color: Green Grounding Resistance: Range: 20 Ω; 200Ω; 2000Ω Basic Accuracy: ± (2%+0.1 Ω); ±(2%+3d); ±(2%+3d) Resolution: 0.01 Ω; 0.1Ω; 1Ω Ground Voltage (50Hz to 200Hz): Range: AC200V Basic Accuracy: ± (2%+6d) Resolution: 0.1V Input Impedance: 1M Ω Overload Protection: 200Vrms Auxiliary Testing Red Line: Approx. 15m / 49.2ft red line Auxiliary Testing Yellow Line: Approx. 10m / 32.8ft yellow line Auxiliary Testing Green Line: Green line Approx. 5m / 16.4ft Product Power Consumption: Test no load less than 800mV Simple Test Red Line: Approx. 1.6m / 5.2ft Simple Test Green Line: Approx. 1.6m / 5.2ft Maximum Display: 1999 counts Battery: AA battery x 8 (without battery)