$24.99 – that is current price with coupon for BALDR Wireless Digital Color Display Weather Station (in Banggood). You can create price alert here, copy coupons and view price history. What is the best price?
BALDR Wireless Digital Color Display Weather Station Clock Barometer Thermometer Hygrometer Trend Sun Time Forecast Sensor -40℃ – White EU Plug
Latest coupon and price update (UTC):
Banggood ($24.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Is it expensive? Looks like a good price to me (average is $30.17).
Link: Banggood product page
Price: $24.99
Old coupons (from the oldest to the newest): BG2c7d4a, BG7d187e, BG0195fd
(system checks these coupons on every price check (like once per 24 hours), 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
Do you need price history chart (for all/most countries) for BALDR Wireless Digital Color Display Weather Station? There we go.
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)).