Just check coupons out (with price alert and history). What is 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 price update (UTC time):
Indoor humidity 0~100%RH, name Thermometer, Power supply DC 4.5V (3*AA batteries not include), Communication method WIFI 2.4G, Working temperature -10~+55℃, Material ABS/PC
Banggood
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. There’s only 1 record in my database, so I have no idea if the price is OK.
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): BGBRFRM, BGSTHO15, BGBKWT02, BGBKTEMS, BGHONEY2110, BGSHOM15, BGSHE15, 13f142, BGa3c9a9, 6GSGIT, BG078cf7, BG4a7a54, ADMITAD2212, BGSmart6, BG8ReviTrage
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
It doesn’t make sense to generate price history chart, because there is one price record which is: $16.49.
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)).