Feature 1、ABS MATERIAL: Electronic fence fault tester adopts ABS material, durable, resistant to cold weather and easy to carry 2、ACCURATE DETECTION: 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、LIGHTING DESIGN: When the fence is active, this fence fault finder will flash red light prompts, simple and easy to use 5、SLEEP STATE: The fence fault finder directly enters sleep state in dark place or at night, without causing harassment Item Type: Electric Fence Beeper Material: ABS Type: Detection Series Purpose: Test whether the electronic fence voltage is faulty 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. 18g / 0.63oz Package List 1 x Electric Fence Beeper Note 1. If there is no sound or the lights flicker, 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