ZigBee Wireless Connection / Automatic Alarm / Detect Atmospheric Pressure.
Just check coupons out (with price alert and history). You probably want to know what is the best price?
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.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/i1u
Old coupons (from the oldest to the newest): 20XMAQ, d173d2, 950fd5, BG10AQTH, 2019SPEDM, BG9AQTH, aff7off, bgssaff9, BGAqara815, BGPLATMOS, BGaDmITAd, BGAQTH09, 13f142, BGplatmos9, BGBFAFF2019, BGCITYADS2019, BGAQT91, BGATMOS, BGAQ20, BGXMTH02, BGHOMEAPP, BGSMARTHO, BGAQA15, bGhOnEy10, BGSM15, BGSMOFF, BGAQTH7, BGAQTE, bgshOOp10, BGSAMRTH, BGXM1SND, BgcLuBofErtA10, BGAQTEMP, BGAQTHSP, BGAQTHSE, BGAQTHP, BGAQTECZ, BG12AQ2345, BGAQTPP, BG15SH12, BGSTHO15, BGAFF10OFF, BGAQTUK, BGCuponation10, BGAQTASS, BGfdc1b3, BGHONEY2110, BG87ba34, BGff59b6, BGSHOM15, BGcc8c15, BG9bbcd8, BG92e8e9, BGa99dee, BGdf29fc, BGSP316, BGSPC316, BGISOG316, BG687e63, BG579bf1, BGCL1316, BGcou931, BGHO316, BG86f8e3, 6GSGIT, BG600600, BG7c6a6d, BGb0039f, BGD11046, BGD11316, BG8b53f8, BGB5058, BG317294, BGSmart6, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGJUNEGSG9, Cuponation9, 9OFFSUMMER
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Aqara Temperature Humidity Sensor [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Aqara Temperature Humidity Sensor. The lowest price was: $5.59.
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)).
Why there is no regular price checking? Coupon is dead in just about one-two hours after it was published, but i still receiving price alerts…
“Latest coupon code price check (UTC time): 2019-08-06 09:44:55”
The coupon is working in my country. That is why it’s available.
I didn’t know that there are coupons special for the country, it is usually simply indicated that there is no delivery to a specific country. Sad to know
Gearbest writes that coupon has expired, but in reality it works in other countries (or it has really expired).