BFletcher
TVWBB Honor Circle
If you have interest in remote temp monitoring you might find this to be a relatively economical approach, assuming the proprietary LoRa technology doesn't go EOL. A few other control devices are also available, including kits, but I have not yet seen a kit that includes only the hub and temp sensor. I've only been using these for 4 days, comprised of some temp sensors, outlet switches, and a water shut off valve.
https://www.amazon.com/exec/obidos/ASIN/B085HTZRRR/tvwb-20
https://www.amazon.com/exec/obidos/ASIN/B07TQLKQLJ/tvwb-20
https://www.amazon.com/exec/obidos/ASIN/B085HTZRRR/tvwb-20
https://www.amazon.com/exec/obidos/ASIN/B07TQLKQLJ/tvwb-20