Yuwell Non-contact Infrared Thermometer (Banggood, Aliexpress: Unit size: 155 * 40 * 40 mm, Memory: 30 sets, Unit weight (without battery) 80g, Temperature display resolution: 0.1°C(0.1°F), Measuring distance: 3cm-7cm, Automatic power-off: <60secs, Accuracy: ±0.1°C, Batteries: DC 3V (2 pcs AA batteries not included) (the best price with coupon)).
Price history, coupons and price alert are available on this page. What is the best price?
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($37.99): 00c906
apply code in your basket (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/feV
Old coupons (from the oldest to the newest): BGMIYUWELL, BG10OFFAFF, BGwhielabel, 13f142, BG10OFFAFF1, BANGGOODSD, BGHealth06
(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 Yuwell Non-contact Infrared Thermometer. The lowest price was: $26.99.
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)).