This nice, compact sprinkler timer is perfect for the ASF-1, KSF-2, CSF-3, Model 6 and Model 7. Although designed for water valve operation for a sprinkler system, this timer will provide up to 8 feeding cycles (8 on-off\'s) per day or odd days of the week for up to 4 different feeders (one per zone). It has its own power pack and must be installed indoors close to a power plug, or outdoors only in an approved enclosure and power source. It is very easy to program and will keep exact digital time, even during power outages. If you are wanting to operate more feeders at various times, you can use a sprinkler timer with more zones and use a feeder with each zone that is normally used for a water valve.