Sensor set up instructions
Sensor Installation Guide for Fluss+
This guide provides detailed steps to install a sensor on your Fluss+ device, enabling it to detect whether your gate, door, or barrier is open or closed. The sensor uses Normally Open (NO) or Normally Closed (NC) wires and requires physical mounting of a magnet for state detection. Ensure your Fluss+ is already claimed and connected to WiFi before starting.
Requirements
- A claimed Fluss+ Device.
- Device connected to WiFi.
- Small screwdriver (Flat head).
- Medium screwdriver (Flat head).
- Sensor wires (NC) / (NO) package [more info in Step 2].
Step-by-Step Guide
Disconnect the Fluss+ Device
If a Fluss+ is already connected, unscrew the wires connected to the motor. Make sure to note where each wire was connected.
For more sensor wiring info check the tab below:
Devices where sensor Cable connects directly
Where Fluss needs a Door Contact
> Mostly on garage doors and Gemini Motors due to no status
> use this form for door contact
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- Open the Fluss+ casing
You'll notice a <> symbol indicating where the sensor wire can be connected. In this example, we are using 'normally open' wires.



Connect a sensor wire to the Fluss+
Use a small screwdriver to slightly loosen the terminal marked with the '<>' symbol. Make sure to thread the sensor wire through the plastic casing.
Connect one sensor wire to the <> terminal. Then, tighten the screw in that section to ensure a secure connection.
Additional Information: The sensor wires must be either Normally Closed (NC) or Normally Open (NO) wire types.
- Black wires are typically Normally Closed (NC).
- White wires are typically Normally Open (NO).
- Setup the other wire to the gate motor
Wire up the Fluss+ device and now the other sensor wire then needs to be connected to the voltage section to give power.
For Centurion Smart Motors, if there's an I04 port that can be inserted there instead of the voltage port.
Usually it will be same section where Fluss+'s red wire connects to.

- Setup the spare magnet for the open/close state
Ensure a good distance to set up the magnet to touch one another when the gate is 'Closed'. When the magnet is separated, the state will be 'Open'.

Note: It's important that the magnet touches each other in order to show an accurate state of the gate for it to be closed. - Setup the sensor display on the Fluss+ App
Go onto the Fluss+ App. Select 'Devices' on the bottom left.

Select the device that you are using for the sensor:

Go to 'Settings'

Toggle sensor installed

Select the sensor of which wire type it is (check Step 3 for more info if you're not certain):

Then Select Save to save the device settings:

Trigger the device, and you should be able to see it either say open or close: Blue background represents as 'Closed'

White Background represents as 'Open'

Additional Tips & Troubleshooting
After installation, test the sensor by opening and closing the gate/door multiple times to confirm accurate state detection in the app. If the sensor does not register correctly, double-check wire connections, magnet alignment, and selected wire type (NC/NO) in settings.
Important: Always disconnect power to the motor/gate system before handling wires to avoid electrical hazards.
Safety & Best Practices
- Disconnect all power sources before opening the casing or connecting wires.
- Ensure the magnet is securely mounted and properly aligned for reliable open/closed detection.
- Use the correct wire type (NC/NO) matching your setup to avoid false readings.
- Keep the Fluss+ app and firmware updated for the latest sensor features and stability.
If you run into any issues, please reach out using the contact details above.
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