Package Contents: 1x Thermometer.
Just check coupons out (with price alert and history). 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. Only one coupon available!
Link: Banggood product page
1. ($18.80): BG10OFFAFF1
put item in your cart and apply coupon code there after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
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
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for Water Temperature Display Thermometer is here. The lowest price was: $7.88.
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)).