Just check coupons out (with price alert and history). You probably want to know what is the best price?
Input DC3V, Indicator Light Red, Frequency Selection One-click Pairing, Radio Frequency 433Mhz, Waterproof Rating Not Waterproof, Model BW-DS02, Battery Type CR2477, Installation Suspension/Magnetic Suction/Paste
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 Europe . Too bad there’s no coupon right now 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
Old coupons (from the oldest to the newest): BGSTHO15, 10%ForBGBW, BGHONEY2110, BGSHOM15, 13f142, BGSHE15, BG045c6e, BG489e60, BG952aec, BG80cd9c, 6GSGIT, BG70205f, BG43b9c3, 8BGwbg2204, 2203ActiesNL, BGJUNEGSG9, Cuponation9, 9OFFSUMMER
(these coupons are old, so probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-DS02 433MHz Temperature Humidity Sensor [EU].
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)).