Permanent-install CAN to cloud for trucks, buses and coaches in active service. Built around REXGEN Air, a fit-and-forget logger with full SAE J1939 support, LTE upload, GNSS dead reckoning and over-the-air configuration across the fleet. Streams engineering, warranty and DM1 fault data without an engineer returning to the vehicle.
Recommended product
Today's connected vehicles are not data loggers. REXGEN Air fills that gap with full SAE J1939 support, LTE upload to your server and over-the-air configuration and firmware across the fleet. Designed for permanent install on trucks, buses and coaches that work for a living.
Full SAE J1939 protocol including DM1 diagnostic trouble code monitoring and FMS (Fleet Management Standard) signals. Filter by PGN, source address and destination address at the device to control data volume before upload.
2 channels of CAN/CAN FD at up to 8 Mbit/s, expandable to 4 via breakout. Compatible with current and next-generation commercial vehicle networks including modern aftertreatment and telematics buses.
LTE CAT 1 or CAT 4 with automatic upload to FTP, FTPS, S3 or HTTPS. Snapshot service decodes selected J1939 signals for trend dashboards. GNSS dead reckoning keeps the position trace continuous through cellular coverage gaps.
Non-removable eMMC up to 32 GB with 100% power-safe logging. Over-the-air configuration and firmware updates across thousands of vehicles. 5V to 27V input handles both 12V and 24V commercial electrical systems.
The challenge
Fleets in active service are not test rigs. Logger choice has to match how the vehicle actually operates day-to-day.
Trucks, buses and coaches run revenue routes. Loggers that require physical retrieval, SD card swaps or scheduled vehicle access create downtime that the operator cannot afford. Permanent install with LTE upload removes that constraint.
Heavy-duty CAN networks carry hundreds of PGNs across engine, aftertreatment, transmission and body domains. Logging everything fills storage fast and obscures the signal that matters. PGN, source address and destination address filtering has to happen at the device.
A single OEM monitors thousands of vehicles across customer operators. Configuration and firmware updates need to happen over-the-air across the fleet or the data programme stalls on service-bay availability.
Applications
From OEM fleet warranty programmes to single-vehicle calibration and durability work, commercial vehicle data acquisition spans several distinct workflows.
REXGEN Air monitors J1939 DM1 fault codes across the fleet. DM1 counter triggers capture pre and post-fault context. Snapshot service sends decoded J1939 signals to your server on a schedule for trend analysis and warranty case files.
Up to 4 CAN/CAN FD channels with GNSS dead reckoning for vehicles that move between cellular coverage and tunnels, depots or remote routes. Buffer offline to non-removable eMMC, upload automatically on coverage return.
REBEL LT for individual vehicle work where the logger needs to move between platforms. 2x CAN with full J1939 support, configurable triggers and 4 analog inputs. Pair with K-TC for engine bay, exhaust and brake thermal monitoring during durability validation.
Recommended hardware
REXGEN Air is the recommended starting point for permanent install across operating fleets. REXGEN Pro adds on-vehicle edge compute for fleet applications including driver behaviour scoring and OTA module updates. REBEL LT covers single-vehicle J1939 work with removable mounting for test campaigns.
Up to 4x CAN/CAN FD with LTE CAT 1 or CAT 4 upload, GNSS with dead reckoning, OTA configuration and firmware across the fleet. Full SAE J1939 with DM1 fault monitoring and FMS support. Non-removable eMMC up to 32 GB with 100% power-safe logging. 5V to 27V input for 12V and 24V commercial electrical systems.
Edge platform with deterministic CAN capture underneath and on-vehicle applications above. Driver behaviour scoring, predictive maintenance computation, OTA module updates and diagnostics workflows for commercial...
2x CAN 2.0 with full J1939 (including DM1 fault monitoring), UDS (ISO 14229) and XCP/CCP. 4 analog inputs, removable SD up to 64 GB. 4.7V...
Our applications engineers help commercial vehicle OEMs and fleet operators specify the right logger configuration, connectivity setup and data workflow.
What engineers say
Everything in one package, installed in minutes, configured and logging in a few more and now all the data is accessible directly from my laptop. The REXGEN Air has really simplified what has traditionally been an 'expert' role to setup telematic data-loggers, thank you Influx Technology.
Influx Technology REBEL dataloggers are the CAN datalogger of choice for Club Car's Test, Validation, and Software Development teams since 2017. The dataloggers are affordable, reliable, and the DIALOG Analysis software is easy to use.
Software ecosystem
REXGEN Air ships with REXDESK for logger configuration and J1939 PGN filter setup. Fleet operations route through the cloud platform for upload management, fleet inventory, OTA configuration and firmware updates. Every Influx Technology data logger ships with free companion software. No licence fees, no per-seat charges, no annual subscription costs.
Explore REXDESKLogger configuration, J1939 PGN filter setup, trigger configuration
REBEL configuration, XCP/CCP setup, CAN and LIN trace analysis
Thermocouple and sensor calibration with live oscilloscope view
Diagnostics and firmware updates for K-Series modules
Why Influx Technology
Built, tested and supported from one site at the heart of UK automotive testing.
Our UK headquarters sit within one of Europe's leading vehicle test facilities. We develop and validate hardware in real test conditions.
Your enquiry is handled by the engineers who designed the hardware. No reseller layer, no third-party support desk.
Hardware design, firmware, desktop software and cloud platform all developed in-house. No third-party dependencies in the signal chain.
REXDESK, K-CAL and DIALOG are free with every hardware purchase. No per-seat charges, no annual renewals.
Frequently asked questions
Yes. REXGEN Air, REXGEN 2, REBEL LT and REBEL CT all support SAE J1939 natively. The FMS (Fleet Management Standard) subset is supported as a defined PGN group within J1939. REXDESK provides PGN-based filtering by source address, destination address and PGN. DM1 diagnostic trouble code monitoring is built in.
Yes. REXGEN Air accepts 5V to 27V input. REBEL LT accepts 4.7V to 36V. Both ranges cover 12V and 24V commercial vehicle electrical systems without external voltage converters or DC-DC modules.
REXGEN Air connects via LTE (CAT 1 or CAT 4) to upload data automatically to your server via FTP, FTPS, S3 or HTTPS. Configuration and firmware update over-the-air across the entire fleet without physical access to the vehicles. eMMC storage up to 32 GB buffers data through extended periods offline.
Yes. REXGEN Air supports J1939 DM1 fault monitoring with configurable triggers. DM1 counter triggers can start recording around fault events with pre and post-event capture. The snapshot service periodically sends decoded J1939 signals to your server for trend monitoring and warranty case files.
REXGEN Air is the permanent-install logger for fleets in active service: LTE upload, OTA configuration, non-removable eMMC, 5V to 27V input. REXGEN Pro is the on-vehicle edge platform: deterministic CAN capture underneath, with driver behaviour scoring, predictive maintenance and OTA module apps running on the device. REBEL LT is the removable logger for single-vehicle test work: removable SD card, no built-in cellular, 4.7V to 36V input. Most OEM programmes use a combination: REXGEN Air on the fleet for streaming, REXGEN Pro where edge compute matters, REBEL LT for individual test campaigns.
REXGEN Pro fits OEMs running programme-grade edge platforms on commercial vehicles: driver behaviour scoring, predictive maintenance computation, OTA module updates and diagnostics that run on the vehicle rather than waiting for data to reach the cloud. REXGEN Air handles capture-and-stream; REXGEN Pro handles capture-and-compute. The two are commonly deployed together on the same fleet for different jobs. REXGEN Pro is enquiry-only, so discuss your application with our engineering team.
REXGEN Air's integrated GNSS receiver supports dead reckoning using vehicle motion data when satellite signal is lost (tunnels, urban canyons, depots). The position trace remains continuous through coverage gaps. Logged data buffers to non-removable eMMC and uploads automatically via LTE when coverage returns.
The K-TC module is a CAN-output K-type thermocouple system designed for high-temperature monitoring on commercial vehicles. Up to 32 channels with plus or minus 1C accuracy, supporting K, J and T thermocouple types. CAN bus isolation rated to 780V. K-TC outputs CAN messages that REXGEN Air, REBEL LT or REXGEN 2 record alongside J1939 traffic on the same time base. Common deployments cover engine bay, EGT (exhaust gas temperature) and brake pad temperatures during durability validation.
Describe your fleet size, vehicle platforms, connectivity requirements and data scope. Our applications engineers will scope the deployment.
