When a VBOS occupancy sensor is not in use, it can be put back into sleep mode. This makes sure that the battery isn't used while the sensor is in storage.
Powering off a sensor
To power off a sensor, use a paperclip or a similar small (but not sharp) object to press and hold the sync (S) button for 5 seconds until the light turns blue.
Warning: Powering off a sensor also unpairs the sensor, so only do this if you're planning to store it away for a long period of time.