OBD Reader for GasApp

Launch price: $39.99 (regular price $59.99). You save $20.

Plug it into your car once, and GasApp reads the fuel your engine actually burns. Your money-burned counter goes from an estimate (within 10–20%) to a measurement (within 5–10%).

• Includes 1 year of GasApp, free (a $39.99 value), with every reader. Your code arrives by email after you order, or on launch day if you order before GasApp is on the App Store.
• Made for GasApp. Tested with GasApp on a real car. Works on iPhone and Android.
• Bluetooth LE. GasApp finds it and connects on its own, with no pairing in your phone's settings.
• Fits almost any US car from 1996 on. Will it work with my car?
• Hands-free trips. With GasApp open, starting the car starts a trip, and turning the car off ends it.
• Check-engine codes in plain English. See what the light means, how urgent it is and whether it can make you burn more gas. Clear the code once it's fixed.
• Live engine data: speed, rpm, coolant temperature, battery voltage, fuel level and more.
• Heads-ups while you drive: a new engine code, the engine running hot, or the battery not charging.

Specs

• Bluetooth LE 4.0
• Standard ELM327 commands
• Powered by the car's OBD-II port (12 V cars)
• About 88 × 46 mm

Its label says "ELM 327 Interface".