Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
ZigBee Wireless Connection / APP Control / Multi-purpose Smart Home Security Equipment
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 code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. CouponsFromChina software could not find any coupon for this product in Banggood. Uhm… There’s no price history (in my database) for this product right now.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 10XMA, 20XMAQ, d173d2, 256310, DAQIR, 360878, BGMAQDS, affiliate6, aff7off, BG7AQDWS, bgssaff9, BGaDmITAd, BGAQDSS9, 13f142, BGhumankit, BGBFAFF2019, BGAQDSS1, BGCITYADS2019, BGZIGBEEPL, BGAQDS, BGAQ20, BGHOMEAPP, BGAQA15, BGAQDS04, bGhOnEy10, BGSM15, BGSMOFF, BGAQWDS7, BGAQADOORS, bgshOOp10, BGAQDSUK, BGSAMRTH, BGN7CND, BgcLuBofErtA10, BGAQDSH, BGAQDSB, BGAQDSU, BG15SH12, BGAFF10OFF, BGSTHO15, BGAQZUK, BGAARDS1, BGCuponation10, BGAARDS2, BGAQDSSS, BG3d0660, BGd2c614, BGHONEY2110, BGSHOM15, BG571878, BG133c4e, BG40bece, BG200eff, BG78a9e0, BG87e1d2, BG46ecc4, BG0086c3, BGZJ323, BGGROC323, BGcou323, BGSLO323, BG115048, BG35eaee, BG015156, BGCL1323, BGCL323, BGHO323, BGcou925, BGNDH59, BG2f4c49, 6GSGIT, BGf3a810, BGD11047, BG15d2dc, BGB5059, ADMITAD2212, BGSmart6, BGHU1863, BGPLWIOSNA62, MVC8SPRING, 8BGwbg2204, pROMo8cuPoN, BGJUNEGSG9, Cuponation9, 9OFFSUMMER, BG8ReviTrage
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Xiaomi Aqara Window Door Sensor ($-3)
Price history and price alert
We don’t have enough records in database to show price history for this item. BTW: We have only recorded this price: $12.99.
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)).