4. Switch Button: Electric fence buzzer adopts switch button design, can avoid beeping beeps when unnecessary 2. Accurate Detection: This electronic fence fault tester trigger (power supply) can accurately detect whether the fence is normally powered 3. Loudly Beep: Add switch button, the button close to the fence, if the fence is active, loudly beep sound 1. plastic Material: Electronic fence fault tester is made of plastic material, to cold weather and easy to carry 5. Wide Applications: Simple and easy to use, used for checking electric fences, for farms, home gardens, sheep, pets, horses and livestock fences, Weight: 0.05291094288 pounds, Manufacturer: puhae