Patriot electric fence energizers and accessories are built on the foundation of providing you the flexibility to enjoy your lifestyle with a sleek design that matches your need for simplicity, reliability, and performance - all at an outstanding value. Patriot electric fence products are the result of nearly 70 years of experience from one of the world’s leading electric fence manufacturers. The Patriot Five Light Fence Tester has a series of five lights that go on when particular voltage levels are reached. The Patriot Five Light Fence Tester will reliably tell whether a fence has at least 1, 2, 3, 4, or 5 kilovolts on the line. The Patriot Five Light Fence Tester is a much needed tool in anyone's electric fence operation.