Product DescriptionThe RAIN BIRD F11901 is a battery-operated hose end timer designed for residential and light commercial irrigation applications. It connects directly to a standard outdoor hose bibb and controls water flow to drip, soaker, or sprinkler systems without the need for hardwired power or an existing irrigation system. The controller operates on battery power, making it suitable for locations where running low-voltage wiring is impractical. Licensed irrigators and knowledgeable DIYers install this unit to automate watering schedules at individual zones or garden areas.This controller is suited for use at residential properties where a simple, standalone watering solution is needed at a single hose connection point. It is commonly installed on hose bibbs serving vegetable gardens, flower beds, container plantings, or drip irrigation zones. The hose-end design eliminates the need for a multi-zone controller or valve wiring, keeping installation straightforward and self-contained.Key FeaturesBattery-operated design requires no hardwired power or low-voltage wiringConnects directly to a standard garden hose thread (GHT) fittingControls a single zone or hose-end irrigation circuitProgrammable scheduling allows automated watering without manual interventionCompact form factor suited for exposed outdoor hose bibb locationsCompatibilityDesigned as an OEM-style replacement or direct-use hose end timer compatible with standard garden hose thread (GHT) connections on residential and light commercial hose bibbs.Installation NotesInstallation is performed by irrigators or knowledgeable property maintenance personnel. Shut off the hose bibb before threading the controller onto the fitting to avoid pressurizing the unit during connection. Hand-tighten the GHT connection and verify there are no leaks before programming; do not use pipe wrenches on the plastic body. Follow local plumbing codes where applicable and replace batteries at the start of each irrigation season to ensure reliable scheduling.Technical SpecificationsPower Source: Battery operatedConnection Type: Garden Hose Thread (GHT)Order Increment: 1Standard InformationBrand: RAIN BIRDManufacturer Part Number: F11901