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Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. There is one great coupon!
Link: Banggood product page
Coupon (18.47 USD): BGf625a4
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGNEWLKZZ30, BGHome15%, BGHOME748, BGCNBWSC5, BGGFHOME50, BGTDSE748, BGFRSEP8748, BGHALLOWEEN, BGHOMEA15%, BGOCFO748, BGNOTD748, BGBFHOME77, BGCZBF748, BgcLuBofErtA10, BGDESE748, BGDETD748, BGDETDD748, BGDEFO748, BGKM748
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-SC5 LED Kitchen Scale 8kg.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).