Modern vehicles provide a large amount of diagnostic and performance data through the OBD-II port, but most drivers never see this information unless a scan tool is connected. Factory instrument clusters are often limited to speed, fuel level, and warning lights, offering little insight into engine behaviour, temperature trends, or driving patterns.

The TecUpdater A520 was developed to bridge this gap by providing a dedicated digital gauge that continuously displays critical vehicle and driving information in real time. By combining OBD-II data with GPS-based metrics, the A520 ensures compatibility across a wide range of vehicles commonly used in India, including petrol, diesel, and hybrid platforms.

Where and How It Is Used

The A520 connects directly to the vehicle’s OBD-II diagnostic port, typically located below the dashboard on the driver’s side. Once connected, it draws vehicle data directly from the ECU while simultaneously using GPS signals for speed and positional information.

The unit mounts on the dashboard or windshield using the supplied adjustable and rotatable bracket. This allows the display to be positioned within the driver’s natural line of sight without obstructing the road view.

When the ignition is switched ON, the device powers up automatically and begins displaying data without any manual input.

Dual-Mode Operation Explained

The A520 operates in two independent modes:

OBD Mode
In OBD mode, the gauge displays ECU-based parameters such as:

• Vehicle speed

• Engine RPM

• Coolant temperature

• Battery voltage

• Fuel consumption data

• Engine fault codes

This mode is ideal for vehicles with stable OBD-II data communication and provides deeper insight into engine health and performance.

GPS Mode
GPS mode functions independently of the vehicle ECU and displays:

• Vehicle speed

• Driving direction

• Altitude

• Satellite signal count

• Local time

This mode ensures usability even in vehicles where certain OBD parameters may not be available or reliable.

Display and Visibility

The A520 features a 3.5-inch TFT LCD screen with a high-resolution output designed for clear visibility in both daytime and night driving conditions. Automatic brightness adjustment adapts the display intensity based on ambient light, preventing glare at night and ensuring readability during daylight.

The screen layout prioritises essential information, reducing driver distraction while still providing meaningful data at a glance.

Gesture Control Functionality

A built-in gesture control feature allows the driver to interact with the device without physically pressing buttons. Simple hand movements can be used to switch display pages or acknowledge alerts. This hands-free interaction reduces the need to reach for the device while driving, improving safety during real-world usage.

Safety Alerts and Monitoring

To support safer driving habits, the A520 includes multiple configurable warning alerts:

• Overspeed alert

• High engine temperature alert

• High voltage alert

• Fatigue driving reminder

• Engine fault indication and fault code clearing

These alerts act as early warnings rather than replacements for factory warning systems.

Performance Measurement Features

For users interested in vehicle performance monitoring, the A520 supports basic performance testing such as:

• 0–100 km/h acceleration timing

• Braking performance measurement

These functions are intended for informational and comparative purposes rather than professional testing.

Installation Notes

Installation is fully plug-and-play.

• No wiring cuts required

• No coding or scanning required

• No permanent modification to vehicle systems

The device can be removed at any time without leaving marks or affecting vehicle warranty conditions.

Vehicle Compatibility

The A520 is compatible with most vehicles sold in India that support the OBD-II protocol. GPS mode ensures basic functionality even when certain ECU parameters are unavailable.

It is suitable for petrol and diesel vehicles with OBD-II ports and standard ECU communication.

Who Should Buy This Product

• Drivers who want real-time speed and engine data

• Enthusiasts monitoring engine temperature and voltage

• Users seeking an always-visible diagnostic display

• Workshop users for quick vehicle health checks

Who Should Not Buy This Product

• Vehicles without OBD-II support

• Users expecting advanced ECU coding or tuning functions

• Applications requiring professional-grade diagnostic depth

Benefits

• Continuous real-time vehicle monitoring

• Improves driving awareness and safety

• Clean digital display without dashboard modification

• Works across a wide range of vehicles

• Easy installation and removal

FAQs

Does this device add new features to my ECU?
No. It only reads and displays existing vehicle and GPS data.

Will it work if my car’s OBD data is limited?
Yes. GPS mode ensures speed and driving data even if some ECU parameters are unavailable.

Is any wiring or coding required?
No wiring, coding, or scanning is required.

Can it clear engine fault codes?
Yes, basic fault code clearing is supported.