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). You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
Aliexpress
I could not find it 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. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($37.99): 00c906
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): BGMIYUWELL, BG10OFFAFF, BGwhielabel, 13f142, BG10OFFAFF1, BANGGOODSD, BGHealth06
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (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)).