Aliexpress
Click here… to search for ZiMai C12Pro 12.5 Inch 2K Monitor on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (116.99 USD): bGhOnEy10
(CouponsFromChina.com tip: apply it in your cart 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): BG5f93f9, aff7off, BGaDmITAd, BGcc7afe, bgchinafest, BG61e5ca, AFfbG10, BGBFAFF2019, BGCITYADS2019
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for ZiMai C12Pro 12.5 Inch 2K Monitor.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).