The coupon price for Tuya WiFi Weather Station is $49.99 (in Banggood). Just check coupons out (with price alert and history). Best price?
Latest coupon and price update (UTC):
Tuya WiFi Weather Station Color Screen Indoor Outdoor Temperature Humidity Monitor Multifunctional Weather Alarm Clock Real-Time Weather Updates Smart Home Device – EU Plug
Banggood ($49.99)
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it? Low/high price? Well, this price is higher than average price ($47.00)
Link: Banggood product page
Price: $49.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGRSPETTYSS
(these codes were not working in latest coupon update, but you can check them out anyway)
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
Here is price history (for all/most countries) for Tuya WiFi Weather Station.
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)).