ULTIMATE SPEED® Car Diagnostic Device and Code Reader OBDII USOBD A1

Technical overview
The ULTIMATE SPEED® Car Diagnostic Device and Code Reader OBDII USOBD A1 is an automotive diagnostic tool designed for vehicles compatible with OBD II/EOBD systems.

Key features
▸ Reads and clears DTC fault codes
▸ 12 V starting system test
▸ Charging system test
▸ Live data display
▸ QR code result generation
▸ 2.4-inch TFT colour display
▸ Stores up to 350 test results
▸ Supports 7 languages

How it works and what it is for
The device connects directly to the vehicle’s OBD II port to read ECU information, detect engine or transmission faults and assist with basic vehicle diagnostics.

Main technical specifications
▸ Brand: ULTIMATE SPEED®
▸ Model: HG12331
▸ Type: OBD II/EOBD code reader
▸ Model reference: OBDII USOBD A1
▸ Input voltage: 8–25 V
▸ Operating temperature: 0 °C to +60 °C
▸ Humidity: max. 95%, non-condensing
▸ Maximum operating altitude: 2,000 m
▸ Display: 2.4-inch TFT colour screen

Included accessories / compatibility
▸ 1 car diagnostic device and code reader
▸ 1 quick start guide
▸ Compatible with vehicles featuring OBD II/EOBD interface
▸ Integrated OBD II connector

Who it is recommended for
The ULTIMATE SPEED® Car Diagnostic Device and Code Reader OBDII USOBD A1 is suitable for drivers who want to monitor vehicle fault codes, perform basic system checks and better understand vehicle electronic systems.

Pros and cons
Pro
▸ Reads and clears diagnostic trouble codes
▸ Integrated starting and charging system tests
▸ Easy-to-read colour display
▸ QR code function for test results
Cons
▸ Limited to OBD II/EOBD compatible vehicles
▸ Does not replace professional workshop diagnostics

Objective final opinion
The ULTIMATE SPEED® Car Diagnostic Device and Code Reader OBDII USOBD A1 offers practical diagnostic functions for everyday vehicle maintenance and basic fault monitoring.

FAQ
Can this device clear fault codes?
Yes, it can read and clear supported DTC fault codes stored in the vehicle system.

Is it compatible with all cars?
It is designed for vehicles supporting OBD II/EOBD standards. Compatibility depends on the vehicle model and system.

Can it test the battery or alternator?
Yes, it includes 12 V starting system and charging system testing functions.