Product Description From time to time, you will encounter voltage drops or face grounding issues along your fence line. When this happens, having a fence tester, also known as a voltage meter or voltage tester, is needed to identify your fence problem. You Need A Fence Tester ! ! ! It?s important to buy a fence tester when you install your electric fence. If your fence is already up and running, and you don?t have a tester, then it?s time to get one. For your purchase, get a voltage tester specifically designed for reading the energy from an electric fence. Unlike other voltage meters, fence testers are designed for easy use on electic fencing. EM555 Digital Fence Voltage Tester It features Smart Power technology so that it will turn on at the detection of a pulse and turn off after about 4 seconds when no pulse is detected. This technology saves battery power and ensures that the fence tester is turned off when not in use. Saving battery power and ensures that the fence tester is turned off when not in use. Specifications Display: LCD Measurement Range: 300V to 9900V pulse voltage Wire Length: 57inches (+/-3%) Pulse Rate: one pulse every 0. 5 sec to 2 secs Measurement Rate: each detection of a pulse passing trough the fence line under test Power Consumption: about 0. 03W Operating Temperature: 0-40 Celsius; Storage Temperature: -20~60?; Battery: 9V. 6F22or equivalent 1 piece Size: 2. 8 * 6. 9 * 1. 3 inches Weight: 8. 04 oz How To Use? ALLOSUN Offers Distinguished Quality Fence Tester Many horse lovers and ranchers employ electrified pasture fences to confine their livestock. An electric pasture fence is designed to deliver a non-lethal shock to an animal. It is actually a form of protection for horses and cattle. Better for them to be startled by a sudden electric jolt than to wander onto a highway and be killed. To be certain that an electrified fence is doing its job, it must be tested periodically to make sure that there are no breaks in the wire and that the vo