Feature 1、ABS Material: Electronic fence fault tester is made of durable ABS material, resistant to cold weather and easy to carry 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, press the button close to the fence, if the fence is active, loudly beep will sound 4、Switch Button: Electric fence buzzer adopts switch button design, can avoid beeping beeps when unnecessary 5、Wide Applications: Simple and easy to use, used for checking electric fences, for farms, home gardens, sheep, pets, horses and livestock fences Item Type: Electric Fence Beeper Material: ABS Type: Detection Series Working Distance: 0.4-0.5 Meters / 1.31-1.64ft Size Without Ring: Approx. 8 x 3.5 x 1.5cm / 3.15 x 1.38 x 0.60in Battery (Delivered without battery): 3V, CR2032 Button Battery x 1 Wide Applications: Used for farms, home gardens, sheep, pets, horses and livestock enclosures Weight: Approx. 19g / 0.67oz Package List 1 x Electric Fence Beeper Note 1. If there is no sound, means that the fence circuit is abnormal 2. Necessary to remove the screws on the back of the knob before replacing and installing the battery