Moving battery outside Temp Sensor Tag for use in Freezer

[Heinz Wittenbecher]

Planning ahead in case my tag in the freezer can't last at least a month.

My thought is to use some flat cabling and put battery power for the tag outside the freezer.

Have not taken my tag apart yet as I first want to see how long it will last.

I realize that any support and/or warranty would be gone and that's ok.

The tag works exactly as I had hoped so I'm hoping that the battery issue in -20C can be overcome or ends up being a non-issue.

If I can get 30 days out of a battery I will be very happy.

I like planning ahead, hence the reaching out for comments and ideas, just in case needed.

[Pete]

Any cable you use would interfere with the door seal, so that probably isn't recommended.  Might be worth replacing the CR2032 with a BR2032 battery.  They are intended to operate over a wider range of temps (i.e. can handle lower temps than CR2032) so that might be enough for your needs.

[Heinz Wittenbecher]

Thank you Pete.

Will try the BR2032 before tearing into the tag.

BTW, the cable I planned to use was the flat type used by several remote fridge thermometers, but hopefully I won't have to.