Voltage: 95~220V / 50~60Hz, Temperature control range: 5 – 90°C / can be changed in advanced options, Display temperature range: 5~99℃, Storage temperature: -5 – 55℃, Temperature control accuracy: ±0.5℃, Working environment: 0 – 45℃ / 5 -95%RH (no condensation), Temperature sensing element: NTC10K, Maximum load: 16A, Protection class: IP20, Shell material: PC+ABS (flame retardant).
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Updated: 03-08-2025
Banggood
Warehouse in China.
Link: Smart WiFi Thermostat
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons:
1. First page
2. Second page
Price history and price alert
Here is price history (for all/most countries) for Smart WiFi Thermostat. The lowest price was: $17.99.
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)).