Features: Widely applied in ground resistance measurement, loop resistance measurement With optional function of RS232 interface data upload No need to disconnect the ground wire from the ground net Without auxiliary electrode High accuracy and resolution With data memory Automatic power off Specifications: Clamp size: 65 x 32mm Resistance range: 0.01 to 1,200ohm; With automatic shifting Resistance resolution: 0.001ohm; Data memory: 99 sets Alarm setting: 1 to 199ohm; and buzzer alarm Quick boot: in 0.5 second With lower consumption.