How to Install a Room Temp Sensor on Duux North

Quick answer

To install the Room temp sensor North on a compatible Duux North model, pair the sensor with your heater using the remote control or app, then place it in the room you want to monitor.

Installation steps

1. 1. Power on the heater: Turn on your Duux North heater and make sure it is in standby or operating mode. The sensor needs a powered heater to complete pairing. A common mistake is trying to pair the sensor while the heater is completely off — the heater must be powered on.
2. 2. Enter pairing mode: On the heater’s control panel or remote, press and hold the temperature button for about 3 seconds until the display shows a flashing sensor icon or a pairing symbol. Refer to your North manual for the exact button combination. If the icon does not appear, the heater may already be paired with another sensor — remove the old pairing first via the settings menu.
3. 3. Activate the sensor: Remove the battery tab from the Room temp sensor North (if present) or insert a fresh CR2032 battery. The sensor will automatically search for the heater and connect within a few seconds. Keep the sensor within 10 feet of the heater during pairing. Moving it too far away can cause the connection to fail.
4. 4. Confirm the connection: Once paired, the heater display will show a steady sensor icon and the current room temperature from the sensor. The heater will now use the sensor’s reading instead of its internal thermostat. If the icon keeps flashing, the sensor battery may be low or the sensor is out of range — replace the battery or move the sensor closer.
5. 5. Place the sensor: Mount or stand the sensor in the room area you want to control — away from direct sunlight, drafts, and heat sources. Avoid placing it behind furniture or curtains. A sensor placed on a cold windowsill or near a radiator will give false readings, causing the heater to overwork or underheat the room.

Product needed

• Room temp sensor North: The Duux Room temp sensor North is compatible with Duux North models DXMA10, DXMA11, DXMA12, and DXMA13. Check your heater’s model number before purchasing to ensure the sensor will pair correctly.