How do I force a sensor to look for new firmware via over-the-air update?

Your sensor checks for the latest firmware daily - and if available, will update itself.  You should not need to do anything.

To force an update lookup, when the sensor is operating with internet access, press the “reset” button instantaneously (for less than 1 second).   If new firmware is discovered on the cloud, the sensor will download and install this new firmware and reboot.  The full process may take as much as 6 minutes.