WIDE USE RANGE: Measures voltage on any metal wire, wire, rope and tape. Test Fence line, , Ground System, Hook Up Wire and Fence Components. LARGE MEASURE RANGE: Neon lights indicates voltage from 1kv to 10kv. EASY CARRY: Durable ABS case, Withstand cold weather. Not as bright as LED, Not waterproof. LONG LASTING: Normal strobe 20,000 times. Operation Instruction: 1. Drive the probe into the moist soil. (If the soil is too dry add a suitable amount of water to the soil in advance.) 2. Make sure your fence is wired properly. 3. Touch the short probe at the top of the meter to the charger post or wire to get a voltage reading. 4. Visible Reading is not as bright as LED, Not waterproof. Colour: blue Material: ABS plastic, copper Size: Length about: 130mm Package Contents: 2 x Fencing Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.