Dunasys Telematics

DCar-S Telematics Device

Our most complete telematics device, combining advanced car sharing and fleet management features.

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Why Choose DCar-S?

Features
Specifications
Accessories
Remote Locking and Unlocking

The vehicle locks and unlocks via a mobile app or RFID badge, with no physical key. This completely eliminates key handovers, streamlines rentals, and enables fully self-service operation.

Driver Identification

Each driver is automatically identified (badge, smartphone, or NFC), ensuring full traceability of vehicle use, preventing unauthorized borrowing, and simplifying shared fleet management.

Real-Time Tracking

Instantly view your vehicles’ position, activity, and alerts for more responsive day-to-day management.

Immobilizer

The system blocks the vehicle from starting unless a valid booking is active or an authorized badge is detected on board. This prevents unauthorized use, theft, and unplanned departures.

Custom Alerts

Technical alerts and low levels (fuel, battery, vehicle anomalies, etc.) are detected and reported in real time. Combined with our predictive maintenance module, these alerts allow you to act earlier and prevent breakdowns during rentals.

Comprehensive Telematics Data

The device automatically reports key data: mileage, trips, vehicle status, critical levels, and technical events. Maintenance and usage tracking become simple, reliable, and free of manual data entry.

Connected Services

Access an ecosystem of connected services, such as fine management and insurance renewal tracking, to enrich your fleet management.

Connectivity & Networks
  • 4G LTE-M, 2G (GSM/GPRS/EDGE)
  • Micro-SIM (3FF format)
  • Bluetooth Low Energy 4.2
  • Multi-constellation GNSS: GPS, GLONASS, Galileo
  • Full OTA: configuration, firmware, and OS updates (via MQTT / AirVantage)
Vehicle Bus & Protocols
  • 2× CAN FD
  • Compatibility:
    • CAN 2.0A / 2.0B
    • CANopen
    • SAE J1939
    • MilCAN
    • UDS
    • KWP2000
I/O & Hardware Interfaces
  • Inputs / Outputs:

    • 1× GPIO / 1-Wire (0–5 V)
    • 1× RS232 (±5 V to ±15 V)
    • 4× open-collector relays (door locking/unlocking, immobilizer, etc.)
    • 1× general-purpose input, 0–24 V (APC, ignition, trigger)
    • 1× ADC, 0–24 V (500 mA, up to 15-bit)
    • 1× 5 V output (up to 500 mA)
    • USB connectivity: USB Host or USB OTG (USB-A)
    • Status LEDs (4 colors): CAN, GNSS, OTA, Lifecycle
    • Optional NFC tag
Built-In Sensors
  • Accelerometer
  • High-sensitivity GNSS
  • ADC for battery monitoring (vehicle voltage)
System & Security
  • Linux OS, 550 MHz
  • Memory: 128 MB RAM, 128 MB flash, up to 100 MB user memory
  • Built-in security stack:
    • SSLv3, TLS 1.2
    • Secure storage
    • MQTTS, SFTP
  • SDK + APIs for custom development (Legato)
Wake-Up Sources
  • SMS
  • Phone call
  • Button
  • ADC
  • RTC
  • RS232
  • BLE
  • APC
  • CAN
Power Supply & Consumption
  • Nominal power supply: 12–24 V (8–26 V DC)
  • Overvoltage and reverse polarity protection
  • Consumption:
    • ~90 mA @ 12 V (nominal)
    • 5 mA @ 12 V (sleep)
    • 20 µA @ 12 V (deep sleep)
Physical Characteristics
  • Dimensions: 117.82 × 70.92 × 24.01 mm
  • Weight: 85 g
  • Housing material: ABS
  • Operating temperature range: –30°C to +70°C
  • Maximum temperature: 85°C
OBD Connection Cable
Immobilizer Cables
Badge or Fix Key

Key Benefits

Customizable

Easy Booking System

24/7 Access

Data Security & GDPR Compliance

France-Based Support

Installed in Under 30 Minutes

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Need a High-Performance Car Sharing Solution?

See DCar-S in Action

Fully customizable data reporting, compatible with every fleet management platform on the market

Use Cases for Fleet Managers:

  • Calculation of drivers’ working hours and overtime, with automatic custom reports
  • Monitoring of vehicle use outside working hours

  • Accurate mileage tracking per vehicle, with history available at any time
  • Automatic distance reports to simplify administration and expense reimbursement

  • Instant alerts when an anomaly is detected (engine fault codes, critical levels, etc.)
  • Breakdown anticipation through proactive monitoring of each vehicle’s mechanical condition

 

  • Accurate measurement of actual consumption per trip, per driver, and per vehicle
  • Detection of consumption anomalies to cut costs and optimize your fleet

  • Detection of risky or energy-intensive driving behaviors (harsh acceleration, harsh braking)
  • Analysis of braking, engine speed, acceleration, and cornering
  • Tracking of improvements over time, with personalized eco-driving indicators
  • Visualization of high-consumption zones on a map

  • Live view of your entire fleet on an interactive map
  • Access to trip history to review journeys and optimize routes

Are all vehicles compatible?

Our catalog covers most vehicle brands on the market. For those not yet available, as well as the latest models, our reverse engineering team can decode them on request.

 

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How We Support You After Installation

DUNASYS provides a comprehensive FAQ to support you at every stage of your projects.

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Frequently Asked Questions

A car-sharing telematics unit connects vehicles to a management platform in order to monitor usage, access, and data related to shared mobility services.

Connectivity makes it possible to automate certain operations, improve vehicle tracking, and simplify the management of car-sharing services.

A dedicated solution optimizes vehicle utilization, improves the user experience, and simplifies the operational management of shared fleets.

Yes, DCar-S can be integrated into mobility and car-sharing platforms in order to centralize data and manage connected vehicles.

Data makes it possible to track usage, optimize vehicle availability, and improve the services offered to users.

Car-sharing solutions are used by local authorities, mobility operators, businesses, and platforms developing shared and connected mobility services.

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Need a Custom Telematics Solution?

Learn more

A Solution Dedicated to Car Sharing and Shared Mobility Services

DCar-S is a telematics device designed for car sharing platforms and new connected mobility services. This solution makes it possible to manage the use of shared vehicles, secure access, and improve the user experience through smart monitoring and embedded communication tools.

The DCar-S device simplifies the management of shared fleets by enabling vehicle tracking, usage data reporting, and integration with mobility platforms and third-party services. Its architecture has been designed to meet the specific needs of car sharing operators, local authorities, and companies developing shared mobility services.

With its connected mobility features, DCar-S supports the new uses related to shared vehicles, smart urban services, and digital platforms that require automation, traceability, and a smooth user experience.

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