Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-TM01 Wireless Weather Station [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: -3 USD
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
Old coupons (from the oldest to the newest): BGHONEY2110, BG5BWTM01, BGCZBWM, BGCZBWTM, BGCZBWUFS, BGHU0929, BG86c619, BGf313ec, BGf3aabf, BG9cc6b0, BG3212fa, BGND035, BG723cfd, BGa9b4da, BGd965fe, BGafa705, BGSmart6
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-TM01 Wireless Weather Station [EU] (-3 USD)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-TM01 Wireless Weather Station.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).