Hello, Ken.S
Thanks for posting the picture. Looking at your picture IMG_2125 in your post #1, I noticed an improvement to your mounting of the sending unit to the switch you may like? Disconnect the sensor, remove the existing adhesive, place new adhesive on the opposite side, remount the sensor on the switch, and reconnect. This rearrangement allows the battery to be changed without disturbing the wire leads or the sensor case. There will be no stress applied to the solder connections.
Below is shown a modified contact sensor sending unit where the attachment was reversed to provide easy access to the battery without stress on the leads:
See the last picture (4 Test and Mount Sensor) of post #12.
Wyze Sense deadbolt locked sensor
Victor Maletic.