Install The Modules - Kaiterra Sensedge Mini Installation Manual

14. Install the modules

To install the sensor module, simply align it with the bay and press it in,
ensuring the Kaiterra logo on the plastic tab is facing outwards. When
inserted correctly, the module will click into place, and an LED light above
the bay will briefly flash red if the device is powered on.
Sensor modules may be inserted in either sensor bay, and in any order. After
successfully installing the modules, put the front cover on.