$17.99 – Material: Plastic, Brand: KONNWEI, Color: Black/Red, Product (cm): 11.6x 2.4x 8cm/4.5×0.9x3in, Model Number: KW310.
I have just checked coupons. The lowest price I could get is $17.99 for KONNWEI KW310 OBD2 Car Diagnostic Scanner (in Banggood). Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood ($17.99)
Banggood warehouse is located in China. As you can see I didn’t find any active coupon for this product right now… Low/high price? From what I can see this price is higher than average price ($13.74).
Link: Banggood product page
Price: $17.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGCNA15, BGCARELEC, BGHXM006, BGHXM014, BGHXM020, BGH7141801, BGAFF10OFF, BGCuponation10, BGHLimit50, BG10OFFAFF, BGHRepair2, BG10OFFAFF1, BG1ea513, BGd63ae6, BG612fbd, BGRepair63, ADMITAD2212, 2022ACTIESNL, Tabby20, BG1efeb0, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, BGAUTO22, BGdcbfa8, BG8ReviTrage, Cuponation9, BG12ff8d, BGSCM11, BG040f36, BG03ea66, BGAMMT03
(these coupons are old, so probably won’t work)
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
Check out price history chart (for all/most countries) for KONNWEI KW310 OBD2 Car Diagnostic Scanner. The lowest price was: $11.99.
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)).