Cellocator CR-400 — Next-Generation LTE Cat M1 Fleet and Security Management Device

The Cellocator CR-400 is Cellocator's next-generation fleet and security management device — a high quality, cost-effective LTE Cat M1 tracker purpose-built for professional fleet management and vehicle security applications. Replacing the older 2G and 3G CR300B with modern LTE Cat M1 connectivity, the CR-400 delivers reliable, future-proof tracking across global IoT networks with 2G fallback, ensuring continuous operation across the UK and internationally.

Compact and easy to install, the CR-400 is equipped with a large 1,000mAh rechargeable backup battery — significantly larger than most comparable trackers — ensuring extended device operation if vehicle power is interrupted. With built-in BLE connectivity, RS-232 serial port, 1-Wire interface, ignition input, two programmable inputs, two programmable I/Os, crash detection and built-in motion sensors for movement and tow detection, the CR-400 delivers everything needed for professional fleet management, driver behaviour monitoring and vehicle security in a single compact device.

As an official Cellocator distributor in the UK, Tracking Hardware UK ships the CR-400 directly from our London warehouse — with trade pricing available for telematics service providers, fleet operators and resellers.

Key Features

• LTE Cat M1 with 2G fallback — next-generation IoT network connectivity for reliable real-time fleet tracking across UK and global networks, with automatic 2G fallback ensuring continuous coverage

• 1,000mAh rechargeable backup battery — one of the largest backup batteries of any device in its class, maintaining full device operation and data logging if vehicle power is cut or tampered with

• Built-in BLE connectivity — connects to Bluetooth Low Energy sensors and accessories for extended monitoring and driver identification capabilities

• RS-232 serial port — connects to external accessories including fuel level sensors, RFID readers and third-party serial devices for extended fleet monitoring

• 1-Wire interface — connects temperature sensors for cold chain and refrigerated transport monitoring and supports driver identification via Dallas iButton reader and proximity reader Ignition switch input — detects vehicle ignition on and off for accurate trip monitoring and vehicle utilisation reporting

• Two programmable inputs and two programmable I/Os — flexible configuration for connecting door sensors, panic buttons, external sensors and accessory control across diverse vehicle types

• Crash detection — built-in accelerometer detects and records impact events for accident reporting and insurance evidence

• Built-in motion sensor for movement and tow detection — immediately detects vehicle movement and towing events for vehicle security and anti-theft applications

• Driver behaviour monitoring — basic driver behaviour capabilities including harsh braking, acceleration and cornering detection for fleet safety programmes

• Geofencing — configurable zone alerts when vehicles enter or exit defined areas

• LED indicators — built-in LED status indicators for clear installation and operational status confirmation

• Cellocator Open Protocol Standards — compatible with Cellocator's scalable and secure data exchange options for fast integration into existing fleet management platforms

• OTA updates — remote firmware and configuration management without physical device access

Driver Identification with Tracking Hardware UK 1-Wire Keypad

The CR-400 supports 1-Wire connectivity and is fully compatible with the Tracking Hardware UK 1-Wire driver identification keypad. Drivers enter their unique PIN at the start of each trip, and the driver ID is logged alongside all GPS and telematics data — giving fleet managers complete visibility of who was driving each vehicle at any given time. The CR-400 is also compatible with Cellocator's Dallas Reader with LED and push button, the 1-Wire Proximity Reader for contactless card identification, and the standard Dallas iButton key fob. Contact us to discuss keypad and CR-400 bundle pricing.

CR-400 vs CR300B — Which Should You Choose?

The CR-400 is Cellocator's next-generation replacement for the CR300B. Key upgrades include LTE Cat M1 connectivity replacing 2G and 3G, significantly larger 1,000mAh backup battery, built-in BLE connectivity and improved motion sensing. For all new fleet deployments the CR-400 is the recommended choice. If you are currently operating a CR300B fleet and planning a hardware refresh, the CR-400 is the natural upgrade path.

Technical Specifications

Cellular: LTE Cat M1 with 2G fallback

GNSS: GPS and GLONASS

Bluetooth: BLE

Battery: 1,000mAh Li-Pol rechargeable backup

Serial port: RS-232

1-Wire: Temperature and iButton

Programmable inputs: 2

Programmable I/Os: 2

Ignition input: Yes

Crash detection: Yes — accelerometer based

Motion sensor: Built-in — movement and tow detection

Certifications: CE, FCC, IC, PTCRB, AT&T

Typical Use Cases

Ideal for professional fleet management requiring LTE Cat M1 connectivity and large backup battery, vehicle security programmes requiring movement and tow detection, driver identification and accountability programmes using iButton or proximity cards, cold chain transport with 1-Wire temperature monitoring, fuel management using RS-232 sensor connectivity, driver behaviour monitoring and eco-driving programmes, and any fleet application requiring a cost-effective next-generation LTE device with proven Cellocator reliability.

Frequently Asked Questions

What is the difference between the CR-400 and the CR300B?

The CR-400 is the next-generation upgrade of the CR300B. Key improvements include LTE Cat M1 connectivity replacing 2G and 3G, a significantly larger 1,000mAh backup battery, built-in BLE connectivity and improved motion sensing. For new deployments the CR-400 is the recommended choice.

What driver identification options are compatible with the CR-400?

The CR-400 supports multiple driver identification methods via its 1-Wire interface — including the Tracking Hardware UK 1-Wire driver identification keypad, Cellocator's Dallas Reader with LED and push button, the 1-Wire Proximity Reader for contactless card and tag identification, and standard Dallas iButton key fobs. Contact us for guidance on the right driver identification accessory for your application.

Does the CR-400 work with Cellocator's fleet management platform?

Yes — the CR-400 is fully compatible with Cellocator's Open Protocol Standards for fast integration into Cellocator's fleet management platform and other compatible telematics platforms. Contact us for integration support and documentation.

Is the CR-400 compatible with the Tracking Hardware UK 1-Wire driver identification keypad?

Yes — the CR-400 supports 1-Wire connectivity and is fully compatible with the Tracking Hardware UK 1-Wire driver identification keypad. Contact us for keypad and CR-400 bundle pricing.

Can I buy the CR-400 in bulk from Tracking Hardware UK?

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