Aliexpress
Click here… to search for BlitzWolf BW-OS1 Smoke Detector [EU] on Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – BlitzWolf BW-OS1 Smoke Detector (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in Europe 
. There are no active coupons for this product, but the price is pretty low isn’t it? I don’t really know if this price is reasonable, coz there’s no price history in my DB.
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): bGhOnEy10, BGBWUU1, BGSMOFF, 13f142, bgshOOp10, BGSAMRTH, BGBW152, BGAFF10OFF, BgcLuBofErtA10, BG15SH12, BGSTHO15, 10%ForNewBW, BGOS102, 10%ForBGBW, BGHONEY2110, BGSHOM15, BGSHE15, BGbffb3b, BGbd67f6, BG6f85fb, 6GSGIT, BGd8343d
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – BlitzWolf BW-OS1 Smoke Detector (-3 USD)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: 9.99 USD.
You can set price alert (for Banggood).