https://www.gocontrol.com/detail.php?productId=3
Works fine, it was used with Hubitat for about a year until we changed our
furnace, requiring a different thermostat.
Retail: $100
https://www.amazon.com/GoControl-Thermostat-Z-Wave-Battery-Powered-Works/dp/B00ZIRV40K
Asking: $50 with pickup in Philadelphia, PA USA. Contact me for shipping elsewhere.