Price history, coupons and price alert are available on this page. Best price?
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):
, – 3 ways Control [ put it in anywher you want], – Confort Level, – Works with any XIAOMI Smart Product [ mijia Gateway Demand ], – Simple BT Connect (works with Mijia APP), – Hygrometer & Thermometer Test, – Large LCD Display, – Record Hygrometer & Thermometer History
Banggood
Banggood warehouse is located in China. There are no coupons for this product 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/5cd
Old coupons (from the oldest to the newest): 502C6B, 0c6c20, vipupgrade8, TTxBG10, BGMICLOCK, BGPMIBT45, AFfbG10, BG25GAGA, BGBT046, BGMIJIAT1, BGXM134, BGBT4PL, BGBT408, BGMIJIAT, BGMIT12, BGBT40PL, BGLAO12, BGEOFH22, BGWEO12, BGMIE88, BGBINKUPON760, BG12CLK, BGBFCR01, BGBT4RA, BGMIJ119, BGMTCK, BGMJ1188, BGXT1177, BGBAPOHG, BGVDay10%off, BGTFKD, BGHOMEG12, BGMIJIAT13, FBCOUPON1, BGma685, BGTT10, BGxm485, bGhOnEy10, BGBT40RA, BGCNMIJIA1, BGKS453M, BGCNXiaomiJuly1, BGdragonBoat, BGVVDCB, BGSS10%SW, BGLKZZVVDC12, BG760VV, BGXMST760, BGXMYB760, bgshOOp10, BGDQHOME28, BGHome15%, BGGFHOME27, BGCZPROHOME, BgoFErTaSchInA10, BGCZOC760, BGHOMEA15%, BGCODEYR760, BGELEHOME44, BGMS760, BGCODEYB760, BgcLuBofErtA10, BGBFHOME33, BGLD2A56, BGDESE760, BGAFF10OFF, BGFEFR760, BGFEFO760, BGMARFR760, BGMASE760, BGCuponation10, BGMRDC50, BGXIAOMI760, BGMAFO760, BGAPXIAOMI4, BGAPFO760, BGMAYFR760, BGwhielabel, BGMIGLA20, BGJUSE760, BGMIGULS, 13f142, BG10OFFAFF1, BG02a279, 6GSGIT, BG1142b6, BGe7a612, BG21c1cf, BG152352, BG4a7a54, BGb018c9, BGce5aee, BG110096, BGc4a05f
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for Xiaomi Mijia Bluetooth Smart Hygrometer Thermometer is here.
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)).