$5.99 – KWS-V20 USB Current Voltage Capacity Tester (Banggood, Aliexpress: Current: 0-3A /, Time: 0-99H, Battery Capacity: 0-99999mAh, Voltage: 3V-9V /, Size: Approx. 7.2cmx 2.2cmx 1.1cm (the best price with coupon)).
When I was updating this page the price was $5.99 for KWS-V20 USB Current Voltage Capacity Tester (in Banggood). Just check coupons out (with price alert and history). You probably want to know what is the best price?
Latest price update (UTC time):
Banggood ($5.99)
Banggood warehouse is located in China. Coupons for KWS-V20 USB Current Voltage Capacity Tester? Nope, there’re no coupons in Banggood. Well, is it a good price anyway? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $4.99)
Link: Banggood product page
Price: $5.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/feV
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)).