Queclink GV851CEU / GV851CNA

Queclink GV851 — Linux-Based Programmable 4G Telematics Gateway with Open CAN Architecture

The Queclink GV851 is the most flexible and customisable device in the Queclink range — a 4G high-performance Linux-based programmable telematics gateway built for fleet service providers, system integrators and developers who need to go beyond standard vehicle telematics into specialist industrial, smart city and proprietary vehicle applications.

The critical difference between the GV851 and its sibling the GV850CEU is the CAN architecture. Where the GV850CEU uses Queclink's built-in CAN bus library for standard fleet vehicles, the GV851 uses an Open CAN architecture — allowing customers to integrate their own proprietary CAN libraries or protocols directly into the device. This makes the GV851 the correct choice for applications involving non-standard vehicles, specialist machinery, industrial automation systems or any deployment where a pre-built CAN library cannot cover the required vehicle data.

Built on a high-performance Linux platform with ST microprocessors, large memory capacity and a full SDK and API, the GV851 provides system integrators with complete control over the device application — from data collection and processing to event triggering and communication. Combined with RS232, RS485, 1-Wire, BLE 5.2, multiple I/Os and edge computing capability, the GV851 is a truly open platform for building custom telematics and IoT solutions.

As an authorised Queclink distributor in the UK, Tracking Hardware UK ships the GV851 directly from our London warehouse — with trade pricing available for telematics service providers, system integrators, IoT developers and resellers.

Key Features

• Open CAN architecture — unlike the GV850CEU which uses Queclink's built-in fleet CAN library, the GV851 supports integration of proprietary CAN libraries or protocols, enabling connection to non-standard vehicles, specialist machinery and industrial systems with unique CAN implementations

• Linux-based open platform — high-performance Linux OS supports multiple programming languages and full open-source flexibility, with a deliverable SDK and API giving developers complete control over device applications

• Edge computing capability — on-device data processing and logic execution enables intelligent event filtering, local decision-making and reduced data transmission costs without relying on backend servers 4G

  LTE Cat 1 with 2G fallback — reliable future-proof connectivity for real-time data transmission across UK and global networks with automatic 2G fallback

• BLE 5.2 — the latest generation Bluetooth Low Energy for connecting sensors, beacons and accessories with improved range and reliability

• RS232 and RS485 interfaces — serial communication ports for connecting third-party sensors, controllers and devices in both standard and industrial applications

• 1-Wire interface — connects temperature sensors and iButton accessories for environmental and driver identification monitoring

• Multiple I/Os — configurable digital and analogue inputs and outputs for flexible sensor and accessory integration across diverse industrial and vehicle applications

• ST microprocessors and large memory — high-performance processor and memory architecture enabling complex on-device applications, edge computing and large data buffering

• Full SDK and API — deliverable software development kit and application programming interface for system integrators building custom applications on the GV851 platform Multi-constellation GNSS — GPS, GLONASS, Galileo and BeiDou support for accurate real-time positioning

• OTA control — remote firmware and configuration management

Driver Identification with Tracking Hardware UK BLE Keypad

GV851CEU / GV851CNA is a potential integration option for the Tracking Hardware UK BLE driver identification keypad. Confirm the exact tracker and keypad models, firmware, BLE protocol and platform decoding before deployment. Bluetooth support alone does not establish tested compatibility. Contact us for integration and bundle details.

GV851 vs GV850CEU — Which Should You Choose?

Both devices share the same Linux-based programmable platform, 4G LTE Cat 1 connectivity, multiple interfaces, BLE 5.2, edge computing and SDK and API support. The key difference is the CAN architecture. The GV850CEU uses Queclink's built-in CAN bus library covering HGVs, LGVs, passenger cars and heavy machinery — making it the right choice for standard fleet telematics applications requiring tachograph and J1939 data. The GV851 uses Open CAN architecture — making it the correct choice for applications involving proprietary CAN protocols, non-standard vehicles, industrial automation, smart city or any specialist IoT application where a pre-built fleet CAN library is not suitable. Contact us for guidance on which platform best suits your development requirements.

Technical Specifications

Cellular: LTE Cat 1 with 2G fallback

GNSS: Multi-constellation — GPS, GLONASS, Galileo, BeiDou

Bluetooth: BLE 5.2

CAN: Open CAN architecture — supports proprietary CAN libraries and protocols

Serial interfaces: RS232 and RS485

1-Wire: Temperature and iButton

Platform: Linux OS with ST microprocessors

SDK and API: Full deliverable SDK and API

USB: Type-C for firmware and debug

Operating temperature: -40°C to +85°C

Typical Use Cases

Ideal for system integrators building custom telematics applications on an open Linux platform, industrial automation and smart factory applications requiring proprietary CAN protocol integration, smart city infrastructure monitoring and data collection, specialist vehicle tracking for non-standard machinery with unique CAN implementations, agricultural technology and precision farming applications, automotive cybersecurity research and development, edge IoT deployments requiring local data processing, and any application where standard off-the-shelf telematics cannot support the required CAN protocol or customisation level.

Frequently Asked Questions

What is Open CAN architecture and why does it matter?

Open CAN architecture means the GV851 does not use a pre-built CAN library — instead, customers can integrate their own proprietary CAN libraries or protocols directly into the device. This is essential for applications involving non-standard vehicles, specialist industrial machinery or any system where the vehicle or equipment uses a unique CAN implementation that a standard fleet CAN library cannot support.

What is the difference between the GV851 and the GV850CEU?

Both share the same Linux platform, 4G connectivity, BLE 5.2, multiple interfaces and edge computing. The GV850CEU uses Queclink's built-in CAN library for standard fleet vehicles including HGVs, LGVs and passenger cars, and adds tachograph downloading. The GV851 uses Open CAN for proprietary protocol integration and is designed for non-standard vehicle and industrial IoT applications. Contact us for guidance on which is correct for your project.

Does the GV851 come with a software development kit?

Yes — the GV851 includes a deliverable SDK and API, giving developers the tools needed to build custom applications on the Linux platform. This covers data collection, event triggering, communication logic and integration with existing backend systems.

Is the GV851 compatible with the Tracking Hardware UK BLE driver identification keypad?

Compatibility must be checked for the exact tracker and keypad models, interface, firmware and configuration. Bluetooth support alone does not confirm BLE keypad compatibility, and wired keypads require a supported wired interface. Send us the proposed pairing for a compatibility check before ordering.

Can I buy the GV851 in bulk from Tracking Hardware UK?

Yes — we supply telematics service providers, system integrators, IoT developers and resellers across the UK and internationally. Volume pricing and trade accounts are available. Contact us for a bulk quote.

Do you hold UK stock of the GV851CEU / GV851CNA and do you ship worldwide?

Contact Tracking Hardware UK to confirm current stock, dispatch time and a delivered quote for your quantity and destination. We supply B2B customers internationally.

Product Documentation