WaterCop Classic Electric Actuator WCACT1 115VDC, No Valve MAIN CONTROLLER - For the WaterCop Classic system. WIRELESS SIGNAL - Receives wireless signals from wireless flood sensor(s). LEAK DETECTION- Automatically activates the shut-off valve. MANUAL OPTIONS - On/off valve control buttons. COMPATIBLE WITH ALL WATERCOP VALVES - 0.5" - 1.25".