The Kauplus Neon Fence Electric Voltage Tester Max 8000V, for Measure plus voltages on the electric fences or voltage on any metal wire, poly wire, rope and poly tape. Helpful for finding fence line faults for regular fence line maintenance. This Neon Fence Electric Voltage is designed for low impedance and standard duty fence chargers. The Leon lamps indicate voltage levels from 0. 7kv to 8kv (Pulse Rate: one pulse every 0.5 sec to 2 sec), no battery required. Caution: Always wear the insulation equipment; do not touch any conductor with any part of the skin during the operation.