6 LEDs indicate the voltage on the fence and the energiser.
Display up to 10,000 volts, CE
Checking the fence: Hang the hook of the fence tester onto the fence and press the brass tip lightly into the ground. A short circuit is simulated on the fence, the same situation as when an animal touches it.
Checking the electric fence energiser: Hold the hook and the brass tip to the energiser outputs; polarity does not need to be observed. You can immediately see what output the unit delivers.