Go down and check coupons out. Remember to check price history if it is available. You probably want to know what is the best price?
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):
Mode Of Surface Temperature: 0~100℃, Three-Color Backlight Mode Of Surface Temperature: Green, Correct Calibration Function, 34.0~37.3℃: Green (Normal), Power Supply 2x AAA Batteries (Not Included), 34.0~34.9℃: ±0.3℃, Function Sound And Light Alarm Function, Data Storage Function, 38.1 (Set Value) ~42.9℃ Red (High Fever), Ambient Temperature 16~35℃, Measuring Distance 5~15cm, Measuring Range Mode Of Body Temperature: 34~42.9 ℃, Storage And Transportation -20~45℃, Measuring Time 2 Seconds, 35.0~42.0℃: ±0.2℃, Measuring Accuracy 0.0~33.9℃: ±2℃, 43.0~100℃: ±2℃, 42.1~42.9℃: ±0.3℃, Smart Power Off ≤10 Seconds, Mode Of Body Temperature: , 37.4~38℃ (Set Value-0.1) Yellow (Low Fever)
Banggood
Banggood warehouse is located in China. There are no active coupons for this product, but the price is pretty low isn’t it?
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): TTxBG10, BGYKIRT2, aff7off, AFfbG10, BGYongrow12, 502C6B, BGBFAFF2019, BGCITYADS2019
(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 Xiaomi Yongrow YK-IRT2 Infrared Thermometer.
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)).