$5.99 – Current: 0-3A /, Time: 0-99H, Battery Capacity: 0-99999mAh, Voltage: 3V-9V /, Size: Approx. 7.2cmx 2.2cmx 1.1cm.
I am monitoring price for KWS-V20 USB Current Voltage Capacity Tester and it is for $5.99 now (in Banggood). Price history, coupons and price alert are available on this page. What is best price?
Latest coupon and price update (UTC):
Banggood ($5.99)
Banggood warehouse is located in China. I don’t think there is an active coupon right now – at least in my database. The question is – is it a good price? From what I can see this price is higher than average price ($4.99).
Link: Banggood product page
Price: $5.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGGines, BGTOOS729
(I don’t think these’re gonna work, but you can try ’em out anyway)
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.
Price history and price alert
Price history (for all/most countries) for KWS-V20 USB Current Voltage Capacity Tester is here. The lowest price was: $4.99.
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)).