non-condensing, Compatible Protocol ZigBee3.0, Homekit, bluetooth & bluetooth Mesh, Size 90x25mm, Support System Android 5.0 or iOS 12.0 or above, Working Humidity 0%-95%RH, Working Temperature -5℃-50℃, Model ZNDMWG03LM, 2.4G WIFI, Rated Input 5V/1A.
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Aliexpress
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Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($33.99): BG1c17c8
2. ($43.67): Cuponation9
3. ($44.15): BG8ReviTrage
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGMGA2, BGXMZB3, BG25GTW, BGGA25, BGTY2K, BWGWXm1, BGGW24, BGXMG3, 2020CNY, BGFT245, BGVDay10%off, BG765A, BG248G, BGHOMEG12, BGXMGW03, BGGXMZB3, BGSAMH, BGXMGTW, BGXMGWSP, bGhOnEy10, BGXMGWG, BG47595, BGSMOFF, BGXMZG7, bgshOOp10, BGUSACZ599, BGRZIGBEE, BgcLuBofErtA10, BGXMGWEX, BGXMGWH, BGXMGA, BGXMGWB, BGXMFRL, BGXMGTWY, BGXMGAWY, BGXMGW, BGAFF10OFF, BGXMGWAC, BGXMGWAH, BGXMGWHK, BGCuponation10, BGXMGWCN, BGXMGAWYSS, 13f142, BGXMGAG, BGHONEY2110, BGfe2e93, BGb166bf, BGSHOM15, BGd7e281, BGd58271, BG9f4971, BGddc553, BG10b179, BG1738ba, BGb32a05, BGSHE15, BGGROC595, BGSPD595, BGSP595, BGHUOG595, BGISOG595, BGfa729b, BGCL595, BGRU595, BGcou924, BGNDH57, 6GSGIT, BGD11595, BGaf1e4c, BGd25f67, BGD11039, BGa4c593, BGB5047, BGbb9148, BG5ba78c, BGbcf327, ADMITAD2212, BGe1636a, BGSmart6, BG9976ea, 8wEbgaInS5, pROMo8cuPoN, hoNEYbGdeAlS, BGJUNEGSG9
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Multimode ZigBee 3.0 WIFI Bluetooth Smart Home Gateway [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi Multimode ZigBee 3.0 WIFI Bluetooth Smart Home Gateway. The lowest price was: $17.99.
Price records source(s): Gearbest, 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)).