Latest update shows that USB Current Voltage Capacity costs 12.99 USD (in Banggood). Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
Latest coupon and price update (UTC):
Banggood (12.99 USD)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). What about the price? Hmmm, price is higher than average (which is 4.99 USD right now), so better set price alert down below…
Link: Banggood product page
Price: 12.99 USD
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGGines, BGTOOS729
(probably won’t work, but you can try them out)
Aliexpress
Click here… to search for KWS-V20 USB Current Voltage Capacity Tester on Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for KWS-V20 USB Current Voltage Capacity Tester? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).