$13.99 – ANENG SZ08 Digital Multimeter (Banggood, Aliexpress: ANENG SZ08 Ultra-thin Split LCD Digital Multimeter Tester with Stowable Test Pen AC/DC 220V Professional Multimetro Auto Voltmeter Resistance Tester Tool – Red (the best price with coupon)).
ANENG SZ08 Digital Multimeter is for $13.99 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. Best price?
Latest coupon and price update (UTC):
Banggood ($13.99)
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood). What about the price? From what I can see this price is higher than average price ($9.99).
Link: Banggood product page
Price: $13.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG350954
(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
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 ANENG SZ08 Digital Multimeter. The lowest price was: $9.99.
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)).