Features: 1. Safer and faster. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode. 2. Clamp Earth Resistance Test tool can measure the ground fault which can not be measured by traditional method, can apply in the occasion where traditional methods are unworkable 3. Clamp Earth Resistance Test tool measures the integrated value of ground resistance and resistance lead. 4. For ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. Notice: Objects may have Logo, if you want to know, please contact us. Otherwise, please do not bid. Specification: Power Supply: 4x 6VDC batteriesNot Included Resistance Range: 0.01-1200ohm Resistance Resolution: 0.001ohm Highest Resistance Accuracy: ±1±0.01ohm Data memory: 99 Sets Alarm Threshold Setting Range: Resistance: 1-199ohm; Current: 1-499mA Working Temperature and Humidity: -20-55 degree Celsius;20％-90％RH LCD Screen: 4 Digits LCD display Screen Size: 47mm×28.5mm Clamp Size: 65mm×32mm Clamp Opening Extent: 32mm Size: 285×85×56mm Structural Feature: Clamp CT Protection Level: 2 Insulation Shifting Automatic shifting External magnetic field: ＜40A/m External electrical field: ＜1V/m Single measurement tim: 0.5 sec Resistance measurement frequency: ＞1KHz Measured current frequency: 50/60Hz Low Battery Indication: Low battery displays when battery is lower than 5.3V Memory Full Indication: MEM blinks when all 99 sets memory is full Over Range Indication: Out of range indication 'OLohm', 'L0.01' or 'OL A' Auto Power-off: 5 minutes after Boot up Power Consumption: Max 50mA either in booting up or normally working, Continuously working for 30 hours 0.010ohm-0.099ohm Resolution: 0.001ohm Accuracy: ±1＋0.01ohm 0.10ohm-0.99ohm Resolution: 0.01ohm Accuracy: ±1＋0.01ohm 1.0ohm-49.9ohm Resolution: 0.1ohm Accuracy: ±1＋0.1ohm 50.0ohm-99.5ohm Resolution: 0.5ohm Accuracy: ±1.5＋0.5ohm 100ohm-199ohm Resolution: 1ohm Accuracy: ±2＋1ohm 200ohm-395ohm Resolution: 5ohm Accuracy: ±5＋5ohm 400-590ohm Resolution: 10ohm Accuracy: ±10＋10ohm 600ohm-880ohm Resolution: 20ohm Accuracy: ±20＋20ohm 900ohm-1200ohm Resolution: 30ohm Accuracy: ±25＋30ohm Package Includes: 1x Resistance Meter 1x manual 1x test loop 1x storage box Package List: 1x Resistance Meter 1x manual 1x test loop 1x storage box