Helps trace fence line shorts and faults and checks earth performance/voltage. Reads the voltage for battery energizers even when Energizer is in Battery Save Mode. Earth stake for good ground connection. Fence stud – for quick, no fuss contact with fence. Powered by one 9V battery with a life of 6-12 months. Displays fence voltage from 100V to 10kV in 100 volt increments. Displays fence voltage from 10kV to 12kV in 1,000 volt increments. Activated when fence pulse is detected. Auto turn-on indication. Display shows low battery condition.