The ISM Irrigation System Manager (ISM) Sprinkler Timer Instruction Manual provides installation, programming & operation instructions for the ISM sprinkler timer.
The Rain Bird ISM Sprinkler Timer is an electronic controller designed to manage irrigation systems by controlling remote control valves. It features three independent programs with customizable watering days and up to four start times per program. The device includes a battery backup system to retain time, date, and programming during power outages, allowing users to program the timer before connecting it to an AC power supply.
| Number of Programs | Three |
|---|---|
| Watering Start Times per Program | Up to four |
| Number of Stations | 4, 6 or 9 |
| Battery Type | 9-Volt alkaline |
| Battery Backup Duration | Up to one year |
You should replace the battery yearly to ensure an uninterrupted power supply.
The battery backup retains time, date, and programming information during power outages.