According to my DB the lowest price is $8.99 for KWS-2303C DC 4-30A 0-12A Type-C Tester (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
KWS-2303C DC 4-30A 0-12A Multifunctional Digital Display Type-C Tester 1.06 inch TFT Color Screen Voltage Current Power Meter
Latest coupon and price update (UTC):
Banggood ($8.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… I think you want to know if the price is good. According to my database, the average price is $9.24 and current price is $8.99, so it’s probably a good price!
Link: Banggood product page
Price: $8.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Check out price history chart (for all/most countries) for KWS-2303C DC 4-30A 0-12A Type-C Tester.
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)).