DIG battery operated controllers are available in 1, 4 or 6 stations. The single station is available with solenoid only or with 3/4" FNPT or FHT and 1, 1 1/2" and 2" valves with FNPT. The controllers use one or two nine-volt alkaline batteries to power the controller. DIG controllers are waterproof and function day and night in any weather and in most outdoor locations. All our controllers have an LCD screen with four programming buttons for easy programming.