Check coupons or create price alert down below. What is best price?
Measuring Wireless sensor, Max Measuring Temperature 49°C & Under, Display Type Digital, Theory Thermometer Hygrometer, Size 16.1x 3.2x 11.5cm/6.33x 1.25x 4.52”, Weight 214g, Color Black, Operating 3 Touch screen setting buttons, Model Number FJ3551A, Outdoor temperature -40°C (-40°F) ~ 70°C (158°F), Usage Household, Indoor temperature 0°C (32°F) ~ 50°C (122°F), Power Type AA Battery, Humidity 20%RH ~ 95%RH, Cable Length 1M/39.3”
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 and price update (UTC):
Banggood
Banggood warehouse is located in China. Too bad there’s no coupon right now 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): BGHOME945, BGHome15%, BGHOMEA15%, BGAFF10OFF, BGCuponation10, 13f142, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BANGGOODSD, 6GSGIT
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for FanJu FJ3551A Indoor Outdoor Wireless Weather Station.
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)).