Just check coupons out (with price alert and history). You probably want to know what is the best price?
Power: DC3V / 2x AAA battery (not included), – Relative humidity: 25 – 80 percent RH, Working environment: , – Atmospheric pressure: 650 – 1060hPa, Use period: 5 years, Unit of measurement: mmol/L, – Working temperature: 10 – 40 Deg.C, – Storage and transportation: -20 – 55 Deg.C, Blood collection: 0.7 microlitre, Measuring range: 1.1 – 33.3mmol/L (20 – 600mg/dL), Blood sample: fresh fingertip capillary blood
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. ($53.19): 00c906
you should apply the coupon in your 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/5cd
Old coupons (from the oldest to the newest): 502C6B, e2bcea, vipupgrade8, TTxBG10, aff7off, bgssaff9, AFfbG10, BGBFAFF2019, BGCITYADS2019, BGHOMEG12, BGMPB2020, bGhOnEy10, BGAFF10OFF, BGdragonBoat, BGSS10%SW, bgshOOp10, BgoFErTaSchInA10, BGHOMEA15%, BgcLuBofErtA10, BGCuponation10, 13f142, BGHONEY2110, BANGGOODSD, 6GSGIT
(probably won’t work, but you can try them out)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi iHealth AG-607 Glucose Tester Set.
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)).