Dimensions 140*83*21mm, Model KW208, Weight 236g, Brand KONNWEI, Support language English / German / Russian /Portuguese / Dutch / Ltalian /French / Spanish, LED screen size 2.0 inch.
Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($19.99): BGbceda5
2. ($24.14): BG1efeb0
you should apply the coupon in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGf62b67, BG10OFFAFF1, BGRepair63, ADMITAD2212, 2022ACTIESNL, Tabby20
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for KONNWEI KW208 Car Battery Tester is here. The lowest price was: $19.99.
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)).