Lawn Valve Locator,Valve Finder( Find and locate hidden lawn valves) Compatible WithLawn Valve Locator Compatible With all 24 v.a.c. lawn valves. TheValve Finder works on many brands of valves including, Rainbird, Orbit, Hunter and Irritoll excludes Toro. Lawn Valve Locator for locating those hidden lawn valves Audible ToneMake a ticking sound, Helps pinpoint the exact location of the valve.No need to dig or guess where the valve might be Advantage If you are trying to find a grass covered control valve, please try it. This is very effective, it only took a few minutes to find the hidden control valve. Theres no need to waste so much time Simple Installation The Valve Finder uses a simple 2 wire hookup and relies on the power of your controller, eliminating the need for batteries.Just connect the Valve Finder between the controller and the valve wire of the valve you are trying to locate. When you turn on the valve then the Valve Finder LED lights and causes the valve to emit a clicking sound. Then merely search your yard for a clicking sound allowing you to locate the valve Non destructive positioning valves can be found without largescale excavation, reducing damage to lawns or gardens