Just check coupons out (with price alert and history). Do you want to know what the best price is?
Temperature and Humidity Sensor, Dynamic Adjustment, Gateway Function – Smart Linkage, Remote Control – Intelligent Timing and Reservation, Energy Management, Fine Workmanship
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
Original Aqara Air Conditioning Companion Upgrade Version Built-in Zigbee Gateway Function Smart Infrared Home App Control | $27.88 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
1. ($32.85): TS15prime
apply it 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): 20tools, 502C6B, XM15TF, BG1534
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Aqara Air Conditioning Companion.
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)).