$25.29 – Product Name: Aqara Smart Zigbe Switch Key, Working Humidity: 0 – 95% RH, Working Temperature: -10 – 60 Deg.C, Control Type: One Key Control, Power source: Built-in 1pc CR2032 cell battery, Compatible App: “Mi Home” on Apple Store or Google Play, Wireless Connection: ZigBe.
ATM you can buy Aqara Smart Zigbee Switch Key for $25.29 (in Banggood). Price history, coupons and price alert are available on this page. What is best price?
Latest price update (UTC time):
Banggood ($25.29)
Banggood warehouse is located in China. Coupons for Aqara Smart Zigbee Switch Key? Nope, there’re no coupons in Banggood. Is it a reasonable price for this item? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $22.14)
Link: Banggood product page
Price: $25.29
Additional Banggood coupons: first page and second page
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for Aqara Smart Zigbee Switch Key? There we go. The lowest price was: $18.99.
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)).