You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Laser positioning: 12 point ring indicating temperature sensitive zone, Response time: <0.5s, Data retention: there are, Laser: <1mW/630-670nm level 2, Power supply: 1.5V*2 AAA battery(not included), Storage temperature: -10~60C, Response spectrum: 8~14um, 50~600 degree, Temperature difference alarm: free set upper limit and lower limit alarm in temperature range, Automatic shutdown: 30 seconds, Emissivity: 0.1~100 ajustable, Service temperature: 0~40C
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. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($14.72): BG2647
put item in your cart and apply coupon code there 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): 502C6B, BGTR15, BGBG4683
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for ET6531B Infrared 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)).