M1 MDT — Mirror Rearview-Mounted Mobile Data Terminal with integrated certified taximeter

Compact, all-in-one Windows CE MDT for taxi and fleet management, combining connectivity, precision, and certified performance.

The M1 MDT is an advanced driver computer with an integrated certified taximeter, created for fleet management and ride dispatching.
Installed directly in the rearview mirror, it offers a compact and elegant all-in-one solution, eliminating the need for additional on-board devices.

Powered by Windows CE, it ensures stability, reliability, and compatibility with professional fleet management software.
It integrates a GPRS modem for real-time data transmission and a GPS receiver for precise vehicle tracking.

The 5-inch touchscreen display provides an intuitive, customizable interface, ensuring seamless operation for drivers and dispatchers.
Fully compliant with automotive regulations, M1 MDT is ideal for taxis, corporate fleets, and public transport operators.

Combining compact design, connectivity, and advanced functionality, it delivers a complete solution to optimize operations, reduce costs, and improve overall efficiency.

  • Built-in taximeter
  • Windows CE Operating System
  • Built-in GPS
  • Modem 3G
  • EU MID + R10 + R21 certification
  • 4 RS2322 Serial Ports
  • 2 Digital Input/Output I/O
  • 5 Power Outputs
  • 1 Passenger Sensor Input
  • 1 Input for Panic Button
  • 1 Input for Odometer
  • 1 Input for Engine Start
  • Digitax SDK for Development
  • 2 USB connectors
  • K-Line
  • On Wire Protocol

Download Technical Data Sheet

Dual CPU

The M1 MDT features a dual-processor architecture that separates computing and automotive control tasks to ensure stability, performance, and energy efficiency.

Main CPU

  • Samsung ARM 400 MHz processor

  • Optimized ARM architecture for efficient performance and low power consumption

Secondary CPU (AITP – Automotive Intensive Task Processor)

  • Manages power control and safe shutdown

  • Handles wheel pulse, speed, and distance calculation

  • Supports Wake-Up on Ring for remote activation

  • Provides Over-the-Air (OTA) software and firmware updates

  • Always active, it can switch the device and peripherals on or off automatically

This intelligent dual setup guarantees reliable operation, remote management, and optimized power control — ideal for continuous fleet operation.

Ideal for fleet management and job distribution

The M1 MDT is an all-in-one terminal that represents the state of the art in fleet management, combining power, compact design, and full connectivity for dispatching and control.

Key features:

  • GPRS modem for stable, real-time communication with the operations center

  • U-Blox 6 GPS receiver (50 channels) with GALILEO compatibility for precise vehicle positioning

  • Independent module management — GPS and GPRS can operate separately from the Windows CE system

  • Hardware MUX port for sending AT commands during active connections, enabling signal and status diagnostics

  • AITP processor autonomously manages communications and power supply, maintaining GPS and data transmission even when the main system is off

  • Integration with the Digitax Device Track platform for full fleet supervision

This configuration ensures uninterrupted fleet monitoring, efficient data exchange, and reliable connectivity under all operating conditions.

Digitax SDK for APP and solution integration

The M1 MDT includes a ready-to-use Digitax SDK, designed to simplify the integration of advanced automotive systems and third-party applications.

Key benefits:

  • Seamless connection with CAN Bus, I/O controls, and external modules

  • Fast development of custom fleet and dispatching applications

  • Full technical support from Digitax during integration and testing

With its open architecture, the SDK allows developers and system integrators to create tailored solutions that ensure compatibility, scalability, and reliable performance across Digitax platforms.

Customizable User Interface

The M1 MDT features a 4.3-inch 16:9 TFT display (480×272), providing a bright, responsive interface for professional fleet applications.
The integrated touchscreen controller and nine LED-backlit hardware buttons enable fast and reliable interaction, while preventing touchscreen wear during intensive use.

The ambient light sensor automatically adjusts display brightness for optimal visibility in any lighting condition — day or night.

A programmable smart power button adds flexibility and control, allowing operators to:

  • Press briefly to boot from the system disk

  • Long press to boot from the microSD card

  • Long press (safe mode) to shut down Windows CE safely

It can also be disabled or configured to activate Ghost Mode, keeping the system active while appearing off — ideal for discreet operations or energy saving.

Dual boot function

The Dual Boot Function allows the M1 MDT to restore or update the entire system at any time — from user applications to the operating system and CPU firmware.

The device can boot from two independent drives:

  • Flash Disk — used for applications and operational data

  • microSD card — dedicated to large file storage (maps, images, videos, logs) and system recovery or initialization

This flexible architecture ensures safe updates, quick maintenance, and reliable performance even in demanding fleet operations.

Stealth Mode

Stealth Mode allows the M1 MDT to remain fully operational while the display is turned off, ideal for discreet monitoring or energy-saving operation.

Main functions:

  • Remote vehicle control: The control center can remotely activate the device, even with the screen off, to check GPS position, record ambient audio, or retrieve operational data.

  • Ghost Mode: When the power button is pressed, the device can enter Stealth Mode instead of shutting down, maintaining data transmission with minimal power consumption.

  • Alarm management: In case of an alarm, the system can start in Stealth Mode, automatically sending alerts, GPS location, screenshots, or audio to the control center — without drawing attention.

This feature ensures continuous communication, remote security control, and discreet operations in all fleet environments.

Connectivity

The M1 MDT provides a wide range of communication channels to ensure seamless integration with vehicle systems and external equipment.

Main interfaces:

  • 2 high-speed USB 2.0 Hosts and 1 USB OTG port for data transfer and peripheral connection

  • Up to 4 RS232 serial ports for direct communication with on-board devices

  • Programmable digital inputs and outputs for controlling external components and reading signals from sensors or auxiliary systems

This flexible interface architecture enables easy integration, data synchronization, and real-time connectivity across the entire fleet.

Easy to Install

M1 MDT is a product designed to be installed above the rearview mirror, ensuring installation without compromising the aesthetics of the car. Extremely durable and robust, it is designed to be extremely reliable in all professional applications.

Certified for Professional Use

M1 MDT is fully certified for the R10 regulation and the R21 OIML regulation, as well as the European MID certification for use as a Taximeter and MDT in the same device.

TECHNICAL SPECIFICATIONS

M1 MDT

MDT SECTION

Dimensions

Width: 28,5 cm

Height: 9 cm

Depth: 2,7 cm

Weight

Gr. 450 ca.

Displays

Viewing area 4.3” diagonal

WQVGA 480x272 Resolution

Colour TFT LED Display with 256,000 Colours

Display clearly viewable with 300 cd/m2

Ambient Light Sensor with 32 Steps Automatic Regolation

Touchscreen

Full Automotive Rugged Touchscreen with confi gurable touch areas

Extended Temperature Range

Pencil / Finger Type

CPUs

Primary CPU Samsung ARM 400MHz

Secondary CPU M16 for Automotive Intensive Tasks

RAM Memory

128MB RAM Memory

Storage Memory

128MB capacity of Internal Flash Memory

microSD HC (High Capacity compaƟ ble) socket

Modem

Option 1:

Class 33 4 Bands GSM/GPRS/EDGE: 850/900/1800/1900

Mhz, 5 Bands MTS/HSPA: 800/850/AWS1700/1900/2011 Mhz

Option 2:

GSM / GPRS Class 10

Modem can be powered on when the terminal is off .

Wake-up on ring programmable features

Warm reset and cold reset (dedicated electronic circuit) available through API calls

2 Hardware RS232 Serial Ports available on the modem (Hardware MUX) allow both RAS and AT command from user applications

2 Sim Card slots with Software switcher available through API calls

Support international standard protocol (ETSI AT command set)

Supports RAS (Remote Access Service) dialup function

GPS / GPRS Rugged Combo antenna (option)

USB Ports

2 USB Host (with USB Support for Mouse and Keyboard)

1 USB Device (in case of use the number of Host will be 1)

Hardware Keys

5 Lighted taximeter keys

Power on key

1 Power On/Off button

Serial Ports

2 External RS232 Serial Ports

2 RS232 Serial Ports available on embedded meter to connect 2G IU, Printer and Smart Roof sign (Option)

I/O ports connection

5 Power Taximeter Output Ports

Ignition input

Alarm and Security

Stealth Mode Controller (system ON display, audio and lightings off )

Stealth Display Feature

Fully Programmable Stealth display mode, Screen saver mode and

sleeping mode by:

- Power Button

- API

Enable Switching Off LCD without powering down MDT unit.

Multimedia

Speaker and Microphone

Supports wave speaker volume control

API to be provided

Playback wave and speech fi les

Boot

Dual Boot available from Flash Disk and microSDHC Card

Boot Time < 11 sec

Customizable Boot Up Splash Screen with End-User Logo

Soft /Hard Reset

Soft Reset available by API calls

Hard Reset available by microSDHC Card (Factory default)

Safe Windows shutdown procedure

Preshutdown notification

Disk Activity Signal Control

External UPS (option)

Operating System

Windows CE .NET 6.0 with ATL, MFC, .NET Compact Framework 3.5 and Digitax Framework

Development Tools

AcƟ veSync 4.5 (last version available) and USB debugging with

AcƟ veSync support

Sample code for SDK in C++

Compact Framework 3.5 supported

Digitax Framework (Digitax Libraries): GPS, GPRS, I/O, Odometer,

Taximeter, Hardware Keys, WatchDog, OTA, Windows Status, Stealth

Mode Controller, Logs, Light Dimmer, Hardware Identificayion, Splash

Screen, Alarm, Printer 3 Card Reader and Windows Status

Serial port driver and test tools

Digital I/O driver, API (DLL) and test tool

Read/Write Windows CE registry application and API to Supports

permanent saving of system seƫ ngs into registry

Software controllable Warm Restart and test tool

GPRS modem driver and test tool

GPS driver and test tool

Speaker and MIC test tool, wave playback and voice recorder

Contactless / NFC reader driver and test tool

Backlight control API and test tools

Dialup network

GSM phone dialer

Support network protocol TCP/UDP, IP, PPP

Virtual keypad

Text fi le editor

Explorer

Text-To-Speech

Support 3rd party Native Text-To-Speech

Software Navigation

Support 3rd party map application and navigation software with SDK

System diagnostic tools

On Field Test (OFT) OnBoard Diagnostic UƟ lities (option), with Customizable CheckList to make tests of GPS Fix, GPS Antenna, GPRS Connectivity and Base Station Signal Quality, Odometer, Ignition, Panic Button, TouchScreen calibration, Hardware Keys, Ambient Light Sensor, Device version, OS Version, AITP Version, Taximeter, UPS and Battery Status, Roof Light, Navigation Software. All On Field Tests and enrolling features can be used during first installation and swap of devices.

OS Image Loader

Over The Air (OTA) OS image loader or microSDHC Card Image Loader

System Update Fleet Management

Professional OTA (Over The Air) CLIENT allows the update of the whole Operating System and all the CPUs Firmware (option).

Professional OTA (Over The Air) SERVER with vehicles enrolling, group management and selective update, remote logging. Web based user interface (option)

Wireless Connections

National Semiconductor LMX9838 Bluetooth (option)

Complete Bluetooth 2.0 Stack including

Taximeter

Embedded Hardware Taximeter

Full Firmware and TARIF OTA Programmable

Power Supply

8 - 32 V with Surge Protector

Battery

External UPS Battery Package, Standard Battery Pack 1 hour (option)

Mounting

All the External Connectors, Accessible slots (such as SIM Card, microSDHC, USB, etc.) and Screws are Sealed

Operating Temperature

-20°C to 70°C

Humidity

Humidity up to 95% non-condensing

Vibration

Vibration Sine wave, 10 ~ 500 ~ 10Hz, 1.5G, 0.37oct/min 3 axis, 1hour/ axis

Dust Ingress Protection

All connectors covers sealed, no open holes

Dimension

285 mm x 90 mm x 27 mm (W x H x D)

Weight

450 g

TAXIMETER SECTION

Displays

Fare counter:

6 Digits Red High-Luminosity Led

Extra counter:

5 Digits Red High-Luminosity Led

Illuminated Front Text

1 Digit tariff index

Power Supply

From 8,5 to 16 Volts

Temperature

From -15 to 70 °C

Relative Humidity

95%

Mechanical Strenght

3g

Distance Unit

From 10 cm. to 6553 meters

Step 10 cm

Waiting Time Unit

From 0,1 sec. to 6553

Step 0,1 sec.

Totalizator Mode

Datafl ash 1Mb

- 45 + 45 Statistic Memory

- 12 x 45 Monthly Statistic

- 50 x 45 Statistics for each Driver

Tariff Structure

63 Smart and fully indipendent Tariff s

+8 Night Tariff s

+8 Holiday Tariff s

+4 Autofare Tariff s

+4 Autodistance Tariff s

Tariff Choice

Manual

Radio

Automatic at pre-programmed:

- Distance(s)

- Time(s)

- Date(s)

- Fare(s)

- Amount(s)

Tariff Program Change

Manual by Key

Via Radio

By Programmer

By Chip Card

By Infrared Programmer

Peripheral Connections

Printer

Magnetic Card Reader

Chip Card Reader/Writer

Infrared Passenger Sensor

Mobile Data Terminal

Modem

Cellular Phone

Communications Ports

Internal COM1 and COM2 RS232 +/- 12 Volts STD

4 Input/Output TTL level

Communications Protocols

GMSI

Mobilstar

RomaNet

Telecom It. (Upgradable)

Operative Firmware

Upgradable fi rmware on Flash

Transducer

Mechanical Hall Eff ect or Internal adapter for electronic speedometer up to 100.000 l/km

Power Outputs

1 Roof Light 25 Watt s

4 Programmable power outputs 5 Watts

MDT SECTION

Dimensions

Width: 28,5 cm

Height: 9 cm

Depth: 2,7 cm

Weight

Gr. 450 ca.

Displays

Viewing area 4.3” diagonal

WQVGA 480x272 Resolution

Colour TFT LED Display with 256,000 Colours

Display clearly viewable with 300 cd/m2

Ambient Light Sensor with 32 Steps Automatic Regolation

Touchscreen

Full Automotive Rugged Touchscreen with confi gurable touch areas

Extended Temperature Range

Pencil / Finger Type

CPUs

Primary CPU Samsung ARM 400MHz

Secondary CPU M16 for Automotive Intensive Tasks

RAM Memory

128MB RAM Memory

Storage Memory

128MB capacity of Internal Flash Memory

microSD HC (High Capacity compaƟ ble) socket

Modem

Option 1:

Class 33 4 Bands GSM/GPRS/EDGE: 850/900/1800/1900

Mhz, 5 Bands MTS/HSPA: 800/850/AWS1700/1900/2011 Mhz

Option 2:

GSM / GPRS Class 10

Modem can be powered on when the terminal is off .

Wake-up on ring programmable features

Warm reset and cold reset (dedicated electronic circuit) available through API calls

2 Hardware RS232 Serial Ports available on the modem (Hardware MUX) allow both RAS and AT command from user applications

2 Sim Card slots with Software switcher available through API calls

Support international standard protocol (ETSI AT command set)

Supports RAS (Remote Access Service) dialup function

GPS / GPRS Rugged Combo antenna (option)

USB Ports

2 USB Host (with USB Support for Mouse and Keyboard)

1 USB Device (in case of use the number of Host will be 1)

Hardware Keys

5 Lighted taximeter keys

Power on key

1 Power On/Off button

Serial Ports

2 External RS232 Serial Ports

2 RS232 Serial Ports available on embedded meter to connect 2G IU, Printer and Smart Roof sign (Option)

I/O ports connection

5 Power Taximeter Output Ports

Ignition input

Alarm and Security

Stealth Mode Controller (system ON display, audio and lightings off )

Stealth Display Feature

Fully Programmable Stealth display mode, Screen saver mode and

sleeping mode by:

- Power Button

- API

Enable Switching Off LCD without powering down MDT unit.

Multimedia

Speaker and Microphone

Supports wave speaker volume control

API to be provided

Playback wave and speech fi les

Boot

Dual Boot available from Flash Disk and microSDHC Card

Boot Time < 11 sec

Customizable Boot Up Splash Screen with End-User Logo

Soft /Hard Reset

Soft Reset available by API calls

Hard Reset available by microSDHC Card (Factory default)

Safe Windows shutdown procedure

Preshutdown notification

Disk Activity Signal Control

External UPS (option)

Operating System

Windows CE .NET 6.0 with ATL, MFC, .NET Compact Framework 3.5 and Digitax Framework

Development Tools

AcƟ veSync 4.5 (last version available) and USB debugging with

AcƟ veSync support

Sample code for SDK in C++

Compact Framework 3.5 supported

Digitax Framework (Digitax Libraries): GPS, GPRS, I/O, Odometer,

Taximeter, Hardware Keys, WatchDog, OTA, Windows Status, Stealth

Mode Controller, Logs, Light Dimmer, Hardware Identificayion, Splash

Screen, Alarm, Printer 3 Card Reader and Windows Status

Serial port driver and test tools

Digital I/O driver, API (DLL) and test tool

Read/Write Windows CE registry application and API to Supports

permanent saving of system seƫ ngs into registry

Software controllable Warm Restart and test tool

GPRS modem driver and test tool

GPS driver and test tool

Speaker and MIC test tool, wave playback and voice recorder

Contactless / NFC reader driver and test tool

Backlight control API and test tools

Dialup network

GSM phone dialer

Support network protocol TCP/UDP, IP, PPP

Virtual keypad

Text fi le editor

Explorer

Text-To-Speech

Support 3rd party Native Text-To-Speech

Software Navigation

Support 3rd party map application and navigation software with SDK

System diagnostic tools

On Field Test (OFT) OnBoard Diagnostic UƟ lities (option), with Customizable CheckList to make tests of GPS Fix, GPS Antenna, GPRS Connectivity and Base Station Signal Quality, Odometer, Ignition, Panic Button, TouchScreen calibration, Hardware Keys, Ambient Light Sensor, Device version, OS Version, AITP Version, Taximeter, UPS and Battery Status, Roof Light, Navigation Software. All On Field Tests and enrolling features can be used during first installation and swap of devices.

OS Image Loader

Over The Air (OTA) OS image loader or microSDHC Card Image Loader

System Update Fleet Management

Professional OTA (Over The Air) CLIENT allows the update of the whole Operating System and all the CPUs Firmware (option).

Professional OTA (Over The Air) SERVER with vehicles enrolling, group management and selective update, remote logging. Web based user interface (option)

Wireless Connections

National Semiconductor LMX9838 Bluetooth (option)

Complete Bluetooth 2.0 Stack including

Taximeter

Embedded Hardware Taximeter

Full Firmware and TARIF OTA Programmable

Power Supply

8 - 32 V with Surge Protector

Battery

External UPS Battery Package, Standard Battery Pack 1 hour (option)

Mounting

All the External Connectors, Accessible slots (such as SIM Card, microSDHC, USB, etc.) and Screws are Sealed

Operating Temperature

-20°C to 70°C

Humidity

Humidity up to 95% non-condensing

Vibration

Vibration Sine wave, 10 ~ 500 ~ 10Hz, 1.5G, 0.37oct/min 3 axis, 1hour/ axis

Dust Ingress Protection

All connectors covers sealed, no open holes

Dimension

285 mm x 90 mm x 27 mm (W x H x D)

Weight

450 g

TAXIMETER SECTION

Displays

Fare counter:

6 Digits Red High-Luminosity Led

Extra counter:

5 Digits Red High-Luminosity Led

Illuminated Front Text

1 Digit tariff index

Power Supply

From 8,5 to 16 Volts

Temperature

From -15 to 70 °C

Relative Humidity

95%

Mechanical Strenght

3g

Distance Unit

From 10 cm. to 6553 meters

Step 10 cm

Waiting Time Unit

From 0,1 sec. to 6553

Step 0,1 sec.

Totalizator Mode

Datafl ash 1Mb

- 45 + 45 Statistic Memory

- 12 x 45 Monthly Statistic

- 50 x 45 Statistics for each Driver

Tariff Structure

63 Smart and fully indipendent Tariff s

+8 Night Tariff s

+8 Holiday Tariff s

+4 Autofare Tariff s

+4 Autodistance Tariff s

Tariff Choice

Manual

Radio

Automatic at pre-programmed:

- Distance(s)

- Time(s)

- Date(s)

- Fare(s)

- Amount(s)

Tariff Program Change

Manual by Key

Via Radio

By Programmer

By Chip Card

By Infrared Programmer

Peripheral Connections

Printer

Magnetic Card Reader

Chip Card Reader/Writer

Infrared Passenger Sensor

Mobile Data Terminal

Modem

Cellular Phone

Communications Ports

Internal COM1 and COM2 RS232 +/- 12 Volts STD

4 Input/Output TTL level

Communications Protocols

GMSI

Mobilstar

RomaNet

Telecom It. (Upgradable)

Operative Firmware

Upgradable fi rmware on Flash

Transducer

Mechanical Hall Eff ect or Internal adapter for electronic speedometer up to 100.000 l/km

Power Outputs

1 Roof Light 25 Watt s

4 Programmable power outputs 5 Watts

FAQ

What is the M1 MDT used for?

The M1 MDT is a driver computer with integrated certified taximeter, designed for fleet management, ride dispatching, and public transport.
Its compact mirror-mounted design eliminates the need for additional on-board devices.

Which operating system does it use?

The M1 MDT runs on Windows CE, ensuring stability, compatibility, and reliable performance for professional fleet software.

Does it support GPS tracking and communication?

Yes. It includes a GPRS modem for real-time communication and a U-Blox 6 GPS receiver (50 channels) compatible with GALILEO for precise vehicle tracking.

Learn more about Digitax Device Track

Can it integrate with external systems and devices?

Absolutely. Through the Digitax SDK, developers can integrate CAN Bus, I/O controls, and external peripherals to build custom fleet applications.

What makes the Dual CPU architecture unique?

The M1 MDT features a Samsung ARM main processor and an AITP automotive processor.
This configuration ensures efficient performance, remote updates, and autonomous power management.

How does the Dual Boot Function work?

The terminal can start from two drives — the Flash Disk for applications and the microSD for data or recovery.
This allows safe updates and fast system restoration when needed.

What is Stealth Mode used for?

Stealth Mode lets the device operate while the display remains off, ideal for discreet monitoring, energy saving, or security alarms.
It can send GPS data, screenshots, or audio to the control center without drawing attention.

Is the M1 MDT compatible with taximeters?

Yes. It includes an integrated certified taximeter, making it ideal for taxis and public transport fleets that require compliance and compact installation.

What type of connectivity does it offer?

The M1 MDT includes 2 USB 2.0 Hosts, 1 USB OTG port, and up to 4 RS232 serial ports, plus digital I/O for external sensors and devices.

Does Digitax provide integration support?

Yes. Digitax offers technical assistance for developers and system integrators using the Digitax SDK, ensuring smooth and reliable implementation.

Discover more about Digitax M1 MDT

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