I use TH-03 to measure the temp of water as part of a heat pump management system.
I've noticed that sometimes when I restart the system (it generally runs 24hrs a day, 7 days a week) TH-03 can return a different temp from when it was shutdown (seconds before). The body of water is around 51,000 liters and the temp sensor remains in it; so I don't expect its actual temp to vary so quickly.
Sometimes the change is several degrees. The values returned then keep to around this temp (by this I mean that they continue to be around the incorrect value until I restart the system again).
I am using C interface to access TH-03.
Any suggestions on to resolve?