Installing your Hunter Wired Rain-Clik Sensor

After finding a spot that is suitable, run the wire back to your controller along the desired path to ensure you have enough wire to work with. Return to your mounting location and use the two screws included in the packaging to mount your sensor. The barrel of the rain sensor should be pointed up so that the Hunter logo is right side up.

Once the sensor is mounted, adjust the Dryout Time window based on your location and needs. See Hunter’s documentation for more information.

Working your way from the sensor to the controller, secure the wire so that it cannot get damaged. For best results, hide the wire as much as possible, and avoid sharp objects like nails or sheet metal.

Once you get to the controller, remove the disconnect the controller from the power supply.

Wiring the sensor to your Rachio Controller

For Rachio 3 controllers:

Locate the sensor terminals (S1 or S2, & 24 VAC -). Plug one of the wires into S1 or S2, and plug the other wire into 24 VAC -. Reconnect power to your controller.

For Gen 2 controllers:

Locate the sensor terminals (S1 or S2, & SC). Plug one of the wires into S1 or S2, and plug the other wire into SC. Reconnect power to your controller.

For Gen 1 controllers:

Locate the sensor terminals (R1 & R2). Plug one of the wires into R1, and plug the other wire into R2. Reconnect power to your controller.

Open the Rachio App and navigate to that controller. Click on the settings wheel in the upper right corner. Tap “Controller Settings” and “Accessories.” Select the sensor terminal you connected the wire to (S1 or S2), enable the sensor and select the type of sensor (“Rain” in this case).

Now you can test to make sure that the sensor works! Learn more about that here.

Installing your Hunter Wireless Rain-Clik Sensor

First, you need to find an unobstructed place to mount your sensor so that it has a clear view to the sky. Avoid installing below trees, porches or awnings. Your wireless rain sensor has a range up to 200 feet, but that may be decreased by thick walls or other obstructions.

After identifying a suitable location, return to the controller to wire the receiver to the controller.

Using the hardware provided, mount the receiver next to the controller.

Wiring the receiver to your Rachio Controller

For Rachio 3 controllers:

Locate the sensor terminals (S1 or S2, 24 VAC +/-). Connect the blue wire to either the S1 or S2 terminal. Connect the white wire and one of the yellow wires to 24 VAC -. Connect the remaining yellow wire to 24 VAC +. The orange wire is not needed, and can be trimmed. Reconnect the power supply to the controller.

For Gen 2 controllers:

Locate the sensor terminals (S1 or S2, SC, SP). Connect the blue wire to either the S1 or S2 terminal. Connect the white wire and one of the yellow wires to the SC terminal. Connect the remaining yellow wire to the SP terminal. The orange wire is not needed, and can be trimmed. Reconnect the power supply to the controller.

For Gen 1 controllers:

Locate the sensor terminals (R1, R2, C). Connect the blue wire to the R2. Connect the white wire and one of the yellow wires to the R1 terminal. Connect the remaining yellow wire to the C terminal. The orange wire is not needed, and can be trimmed. Reconnect the power supply to the controller.

The receiver should now be receiving power from the controller and the light will most likely be red. The sensor communicates with the receiver once every hour so it could take up to an hour to sync. Alternatively, you can hold the button on the sensor to send a signal to the receiver, which should switch the light to green. If this is not working for you, please contact Hunter support.

Return to the mounting location and using the provided hardware, mount the sensor.

Once the sensor is mounted, adjust the Dryout Time window based on your location and needs. See Hunter’s documentation for more information.

Open the Rachio App and navigate to that controller. Click on the settings wheel in the upper right corner. Tap “Controller Settings” and “Accessories.” Select the sensor terminal you connected the wire to (S1 or S2), enable the sensor and select the type of sensor (“Rain” in this case).

Now you can test to make sure that the sensor works! Learn more about that here.

Receiver Wiring Chart (wireless Rain-Clik only)

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Note

Stuck on wiring? Check out this article on basic and advanced wiring for all Rachio controllers!