Go down and check coupons out. Remember to check price history if it is available. What is best price?
Package Contents: 1x Thermometer
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):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($18.80): BG10OFFAFF1
coupon code has to be applied in shop’s 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): 1b6883, 502C6B, 8caac4, fc0e28, e2bcea, vipupgrade8, TTxBG10, BGLW7, BGLW899, BGss8%hl, BGPW1028, bgssaff9, AFfbG10, BGCITYADS2019, BGBGHFRI15, BGIRGN12, 13f142, BGLK7888, BGHNED, BGVDay10%off, BGHOMEG12, BGAFF10OFF, bGhOnEy10, BGFING10, BGdragonBoat, bgshOOp10, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGZASJJE48, BGLOSKII LW102, BGLOSKII LW102, BGHTJUT2, BGCuponation10, BGMA1604, BGMA1901, BGHONEY2110, BG10OFFAFF, BGwhielabel
(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 Water Temperature Display Thermometer.
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)).