Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (15.03 USD): BANGGOODSD
(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): 502C6B, vipupgrade8, TTxBG10, BGss8%hl, bgssaff9, AFfbG10, BGLK799, BGDC000, BGBFAFF2019, BGCITYADS2019, 13f142, BGVDay10%off, BGclock77, BGHOMEG12, BGAFF10OFF, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGJAFR375, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGLYFR375, BG10OFFAFF1, BGIS375
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Loskii DC-000 Digital Weather Station Clock? There we go.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).