I am looking for a controller that can cover about 6 zones and does not require AC power. I have lots of experience with 24VAC solenoid systems. However, 24 V systems cannot easily be made to run without AC power. The solenoids require constant power when the zone is on.
I recently installed a single zone system using a DIG 6VDC solenoid. These solenoids only require a brief on or off pulse of polarized DC current to turn them either on or off and thus are well suited for a battery system. However there is not much support for the DIG systems and it is hard to find a retailer for the system and they are expensive. They make a battery operated system that uses a 9 volt battery and runs for about a year on it. They also have a solar powered system.
Do you know of any other makers of battery operated, multizone, DC solenoid systems besides DIG?
Thanks.