Originally Posted By: paramedicpete
This probably more than what you want to do, but for rescue teams transporting and treating hypothermic patients, it is an improvised low cost option. Ahead of time, you take an indoor/outdoor thermometer, which will read lower temperatures and generally has a probe on a 2-3 foot wire, coat the probe with silicon sealer which is allowed to cure thoroughly. When need for use, the probe is coated with a lubricant and inserted into the rectum. The meter potion can be left outside of the hypothermic wrap for ongoing monitoring.

Pete



Thanks for that Pete, that is an interesting solution that I have not come across before.