Repeat Cycle Timer. The easy-to-set Repeat Cycle Timer is an indispensable tool for controlling pumps, fans, sprayers, CO2 equipment, and more. Repeat Cycle Timer features a push-button reset for manual cycle operation and power - cycle-on LED indicator lights. Operates on 120-volt AC with 15-amp switching capacity, plugs directly into wall or equipment outlet, and can be safely mounted on wall or other surface. Interval settings from seven minutes to eight hours and cycle settings from five seconds to 30 minutes.