Hunter Mini-Clik Rain Sensor

Yes, the Mini-Clik is designed to be universally compatible with all standard 24-volt irrigation controllers, making it a straightforward addition to almost any existing system.

The device uses hygroscopic discs that absorb water during rainfall. Once these discs expand to a specific moisture threshold, they trigger a switch that interrupts the signal from your controller to the valves, effectively pausing your watering schedule.

This specific model is a wired sensor. You will need to run a low-voltage wire from the sensor location back to your irrigation controller.

For the most reliable performance, mount the sensor in an open area that receives unobstructed rainfall, such as the edge of a roof or a fence line. Avoid placing it under eaves, trees, or overhangs where it might be shielded from the rain.

Yes, it is a fully automated system. As the hygroscopic discs dry out, they shrink back to their original size, which automatically closes the circuit and allows your irrigation controller to resume its normal watering schedule.

You can adjust the sensitivity of the sensor to determine how much rainfall is required to trigger the shut-off. This is helpful if you live in an area with frequent light drizzles versus heavy downpours.