Just check coupons out (with price alert and history). Let’s see what best price is ATM.
RSH-SWS001 Tuya Smart WiFi Weather Station Thermometer Hygrometer Meter Color LED Digital Display APP Remote Control Viewing Indoor Outdoor Hanging Alarm Clock – EU with 1 sensor
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood.
Link: Banggood product page
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!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
There were country-specific coupon codes published on Couponsfromchina social channels and price alerts. Coupon price may vary by country, because there’re different VAT rates, shipping cost etc. There is a chance that some latest coupons are still working:
1. (25.7.2024, $29.99): BGf9f279
Item: RSH-SWS001 Tuya Smart WiFi Weather Station
Countries: CzechRepublic, Greece, Hungary, Poland, Portugal, Slovakia(SlovakRepublic), Slovenia, Spain
Old coupons (from the oldest to the newest): BGSaleFeb8, BGXIFD695, BGe06fba, BG820dfd, BG3a1e6f, BG8FORMULAMX
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for RSH-SWS001 Tuya Smart WiFi Weather Station is here.
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)).