Installation Guide

Clyr Pressure Sensor

Replace the analog gauge with the Clyr pressure sensor, wire it to the controller, and add it to the app for live filter readings.

Clyr pressure sensor installed next to an analog filter gauge.
Digital and analog gauges can coexist using a 1/4 inch T-fitting.

Tools needed

Lay out the components and tools before you disconnect the existing gauge.

  • Clyr Lite or Clyr Controller
  • Clyr pressure sensor
  • Optional 1/4 in. female-female-female T-fitting
  • Teflon tape
  • Small flathead screwdriver
Tools and fittings required for the Clyr pressure sensor installation.
Teflon tape keeps the fittings watertight while the T allows both gauges to stay in place.

Step 1 - Connect your controller

Make sure the Clyr Controller is powered on, connected to Wi-Fi, and linked to the correct pool in the app.

Follow the controller connection guide if your controller has not been commissioned yet.

Step 2 - Breaker off

Depressurizing the system prevents a sudden burst of water when you remove the existing gauge.

Step 3 - Remove old analog gauge

Unscrew the analog gauge from the filter tank port and set it aside. Clean the threads if necessary before installing the new fittings.

Removing the analog pressure gauge from the filter tank.
Remove the legacy gauge carefully so you do not damage the filter threads.

Step 4 - Install 1/4 inch T and pressure sensor

Wrap each male thread with Teflon tape, then tighten the T-fitting into the filter body. This lets you keep both the analog and digital gauges connected simultaneously.

T-fitting attached to the top of the filter tank.
Install the 1/4 inch T so you can thread both gauges into the female ports.

Reapply Teflon tape to the analog gauge and the pressure sensor, then thread each into the T-fitting ports.

Analog gauge and Clyr pressure sensor mounted to the T-fitting.
The sensor and gauge should sit snug with no leaks when the pump restarts.

Step 5 - Wiring Clyr Controller

Connect the pressure sensor leads to the controller using the first available RS485 network. If the controller is unused, start with terminals A1/B1 for network 1.

Review the RS485 network overview if you need a refresher on network assignments.

  • Red → Controller 12V
  • Green → Controller A1 (or A2 for network 2)
  • White → Controller B1 (or B2 for network 2)
  • Black → Controller GND

Step 6 - Turn breaker back on

Restore power so the sensor can energize. Double-check that all screw terminals are tight before moving on.

Step 7 - Add the sensor in app

In the app, open Settings → Devices → Add → Pool Equipment and select the filter tank pressure sensor. Choose the network that matches your wiring and name the sensor.

The pressure sensor reads 0–50 psi, so you can mount it on other high-pressure locations if needed—not just the filter tank.

Adding the filter tank pressure sensor from the Clyr app equipment list.
Select the correct network so readings appear under the right controller bus.

Step 8 - View sensor data

Go to the Equipment tab and tap Refresh Data to see the latest pressure reading from the sensor.

Next steps

With pressure reporting digitally you can set up automation rules, schedules, and alerts in the Clyr app.

Troubleshooting

  1. The sensor shows no data. Ensure the wiring is tight and the sensor has at least 9 V between the red and black wires.
  2. The app displays dashes. Confirm the sensor was added to the same RS485 network you wired.
  3. Readings seem stuck. Re-seat the conductors in the screw terminals and refresh the Equipment tab to request a new reading.