NEDCC Resource: Monitoring Temperature and Relative Humidity

We're at that part of the year in Texas where we're reaching for our hoodies and scarves one day and back to flip-flops the next - and that means your HVAC may be switching back and forth between air conditioning and heat, which could cause fluctuations in your environment. Having the right monitoring equipment in place can help you assess the environment, which will help you decide if there are any changes that need to be made to improve conditions for the long-term stability of your collection.

https://www.nedcc.org/free-resources/preservation-leaflets/2.-the-environment/2.2-monitoring-temperature-and-relative-humidity