To replace the batteries in your Phyn Smart Water Sensor, follow these steps:
Place the Phyn Smart Water Sensor upside down on a flat surface.
Locate the battery cover near one of the three gold sensor feet. You will see two arrow icons and a keyhole symbol.
Turn the battery cover counterclockwise to open it. You may need to apply firm pressure.
When fully open, the keyhole icon will align with the left arrow.
Carefully remove the battery cover.
Remove the old batteries and insert two new AA batteries, making sure the + and − polarity matches the markings inside the compartment.
Reinsert the battery cover, ensuring the keyhole icon is still aligned with the left arrow.
Turn the cover clockwise until it stops and the keyhole aligns with the gold sensor foot. You may need to apply firm pressure to fully close it.
To test the sensor, press and release the button located to the right of the Phyn logo.
Confirm that several blue flashes appear, followed by a green flash and three beeps.
Note:
If you do not see the light flashes or hear the beeps, repeat step 9 with a slightly longer button press. If the sensor still does not respond, remove the battery cover and reinstall the batteries, carefully checking the polarity, then repeat the test.