Activation
To activate this sensor:
Unscrew the cap and carefully remove the battery cartridge
Insert two 3.6V AA batteries (typical 1.5V AA batteries will not work here)
Re-insert the battery cartridge and screw back on the cap. The arrows on the sensor and the cap must match up when screwing back on the cap.
If you purchased the optional magnetic base, screw it onto the bottom now.
Turn on the sensor by pressing and holding the power button until you see a green light appear
Reset
To reset this sensor:
Unscrew the cap and carefully remove the battery cartridge
Remove both 3.6V AA batteries
Re-insert both 3.6V AA batteries and re-insert the battery cartridge into the slot
Screw the cover back on. The arrows on the sensor and the cap must match up when screwing back on the cap.