Kobra Wi-Fi OBD2 Scanner | $13 | Amazon | Promo code ALUA3DVB
Kobra Bluetooth OBD2 Scanner | $8 | Amazon | Promo code 4SMI89DJ
Kobra Corded OBD2 Scanner | $14 | Amazon | Promo code 6AYGQKGA

The computer in your car is a treasure trove of information about gas mileage, engine performance, maintenance issues, and more, but without an OBD2 scanner, most can only communicate with you through the primitive language of dashboard warning lights.

Luckily, three such scanners from Kobra are on sale right now, including some wireless ones that sync to your phone and work with third party apps to track and record anything and everything about your car.

The Bluetooth model ($8 with code 4SMI89DJ) will only work with Android, but the Wi-Fi one ($13 with code ALUA3DVB) supports iOS as well. There’s also an old-fashioned code checker on sale ($14 with code 6AYGQKGA), if that’s all you’re really interested in.