$69.99 – 1x Diagnostic Cable, Package Contents: 1x Scanner, 1x USB Cable, 1x English User Manual, 1x Nylon Bag.
I have checked all old coupons and price is $69.99 for Konnwei KW850 CAN OBD2/EOBD Scanner (in Banggood). You can create price alert here, copy coupons and view price history. Best price?
Latest price update (UTC time):
Banggood ($69.99)
Banggood warehouse is located in China. I’m afraid that there’s no working coupon in Banggood. Well, is it a good price anyway? Well, this price is higher than average price ($57.49)
Link: Banggood product page
Price: $69.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): e2bcea, Cardvr30, TTxBG10, BgAuMotor, BG27fa, BG2019car, AM15prime, AMPrime01, Automo, BG1111CAR, BGKW8502, BGCHRISTMAS, BGCARPA, BGDSGFI, 2880c7, BG20CAR, BGAutos, bGhOnEy10, BG7529, BG2dfcd7, BGJulyCAR01, BG32673, BGCARELEC, BGKOAN01, BG5217, BGCNA15, BGKH97, BGAFF10OFF, BGSABAUM26, BGHRepair2, BGccf542, BG10OFFAFF1, BGRepair63, BGc8b9c6, BG00c906, 2022ACTIESNL, Terence, BG1efeb0, MVC8SPRING, 8BGwbg2204, BGdcbfa8, Cuponation9, 9OFFSUMMER, BGSCM75, BGAMMT03
(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
Do you need price history chart (for all/most countries) for Konnwei KW850 CAN OBD2/EOBD Scanner? There we go. The lowest price was: $54.99.
Price records source(s): Gearbest, 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)).