It’s still a work-in-progress but I’ve drafted a Technical Article about the proposed solution for MVHR Temperature Monitoring. Read the article for more details but in summary it’s using a set of Dallas Semiconductor DS18B20 “1-Wire” temperature sensors connected via a break-out box to a Raspberry Pi (mounted in a DIN-rail case) with a 1-Wire Host Adaptor.

1-Wire Temperature Sensor connected to Raspberry Pi