According to my DB the lowest price is $32.39 for MoesHouse Tuya Zigbee Water/Electric Floor Heating/Gas Boiler Thermostat (in Banggood). Price history, coupons and price alert are available on this page. Do you want to know what the best price is?
Latest price update (UTC time):
MoesHouse Tuya Zigbe Water/Electric Floor Heating/Gas Boiler Thermostat Touch Panel Smart Home Temperature Controller Voice Control with Alexa Google Assistant – White+Electric Heat
Banggood ($32.39)
Banggood warehouse is located in China. Price? Current price is the lowest in history (according to CouponsFromChina database)! Only one coupon available!
Link: Banggood product page
Price without coupon: $36.99
1. ($32.39): BG2dc375
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for MoesHouse Tuya Zigbee Water/Electric Floor Heating/Gas Boiler Thermostat.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).