You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Protocol Zi-Bee, Weight 150g, Size (Lx Wx H) 4.10x 2.20x 1.10 cm / 1.61x 0.87x 0.43 inches, Brand Aqara (Xiaomi Ecological Chain), Model Window & Door Sensor (Zi-Bee Version)
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 . Only one coupon available!
Link: Banggood product page
1. ($24.99): BGXIFD371
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGc94a9b, BGAQA929, BGD11059, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, Cuponation9
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – 2 pcs. Aqara E1 Window Door Sensor Zigbee 3.0 ($-3)
Price history and price alert
Here is price history (for all/most countries) for 2 pcs. Aqara E1 Window Door Sensor Zigbee 3.0 [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)).