The neon tester has simple indicator lights that show whether there is sufficient voltage on the fence.

Range: Led 1, 1,0kV > 1,8kV, Led 2, 1,9kV > 2,5kV, Led 3, 2,6kV > 3,8kV, Led 4, 3,9kV > 4,8kV, Led 5, 4,9kV >

Comes with a 2 year warranty period.