You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Storage temperature -20℃~60℃ does not included battery, Emissivity 0.10~1.00 adjustable (step 0.01), Laser aiming Less than 1mW 650nm / Laser grade II, Blacklit display √, Temperature range -50℃~580℃ / -58℉~1076℉, Working environment humidity 10~95%RH does not condense, Product size 138x102x45mm, Measuring object distance ratio 12: 1, Repeatability ±0.5% or ± 1℃ (2℉), Power supply 1.5Vx 2 AAA(not included), Product weight About 107g, Response time and wavelength Less than 500ms 8~14um, Display resolution 0.1℃ (0.1℉), Working temperature 0℃~50℃, Overrange prompt “HI” or “-LO”, ℃/℉ conversion √
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. I don’t think there is an active coupon right now – at least in my database.
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): BGVDay10%off, BGFY580, BGJP58, BG680H, BGD4730, FBCOUPON1, BGAFF10OFF, BGTT10, 13f142, BGHU0143, BGherra, BG8721d0, BGGines, Tabby20
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for FUYI -50-580C Infrared Thermometer? There we go.
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)).