Permanent-install cloud telemetry for tractors, harvesters, sprayers and construction equipment working in the field. Built around REXGEN Air, a fit-and-forget logger with full SAE J1939 and ISO 11783 (ISOBUS) support, LTE upload, GNSS dead reckoning and over-the-air configuration. Streams engineering and operational data without an engineer in the cab.
Recommended product
Agricultural and off-highway machines spend their working life in remote locations where the engineer is rarely present. REXGEN Air is built for permanent install in that exact context, with full SAE J1939 chassis and ISO 11783 (ISOBUS) implement bus support, LTE upload and over-the-air configuration across distributed fleets.
Full SAE J1939 chassis bus and ISO 11783 implement bus support for tractors, harvesters, sprayers and connected implements. Filter by PGN, source address and destination address at the device to control data volume before upload.
LTE CAT 1 or CAT 4 with automatic upload to FTP, FTPS, S3 or HTTPS. GNSS dead reckoning keeps the position trace continuous through hedgerows, dense vegetation and intermittent rural cellular coverage.
Update logger configuration and firmware over-the-air across machines spread across regions and continents. No depot visit needed. Snapshot service decodes selected J1939 and ISOBUS signals for trend dashboards.
Non-removable eMMC up to 32 GB eliminates SD card failures from sustained PTO and diesel powertrain vibration. IP65 sealed, 5V to 27V input, -40C to +85C handles year-round field deployment.
The challenge
Agricultural and off-highway machinery operates in environments and at duty cycles that consumer telematics was never built for.
Tractors and harvesters spread across regions and continents, away from depots and reliable connectivity. Data capture has to happen on the machine and survive until upload is possible over LTE or WiFi at depot.
Diesel powertrains, ground engagement and PTO-driven implements generate continuous vibration that destroys SD cards and fatigues connectors over a season. Non-removable eMMC and ruggedised connectors are not optional in this duty cycle.
A combined harvester runs J1939 on the chassis, ISO 11783 on the implement bus and proprietary CAN on subsystems like grain monitoring, yield mapping and hydraulic control. Logging needs to capture all of it on one device without bridging.
Applications
From tractor and harvester fleet telemetry to precision agriculture, autonomy and durability validation, off-highway data acquisition spans several distinct workflows.
REXGEN Air installs once on each machine. J1939 chassis bus and ISO 11783 implement bus traffic filtered at the device, uploaded automatically over LTE with GNSS dead reckoning for continuous position trace through rural coverage gaps.
REXGEN 2 in its IMU configuration adds 6-axis IMU and 18 Hz GNSS on top of CAN FD logging. Useful for steering validation, implement positioning, headland turn analysis and autonomous tractor or sprayer validation work.
REBEL LT for J1939 work on individual machines during validation. 2x CAN with full J1939, 4 analog inputs, removable SD up to 64 GB, 4.7V to 36V input. Pair with K-TC for engine bay, exhaust and hydraulic oil thermal monitoring during durability runs.
Recommended hardware
REXGEN Air is the recommended starting point for fleet telemetry. REXGEN 2 in its IMU configuration covers precision agriculture, steering and autonomy work. REBEL LT covers individual J1939 machine work with removable mounting for durability test programmes. REXGEN Pro adds on-vehicle edge compute for autonomous platforms and fleet applications.
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 and ISO 11783 (ISOBUS) support. Non-removable eMMC up to 32 GB with 100% power-safe logging. 5V to 27V input, IP65 sealed, -40C to +85C. Built for fit-and-forget install on agricultural and off-highway machines.
2x CAN FD at up to 8 Mbit/s plus LIN. Optional integrated 6-axis IMU and 18 Hz GNSS in the IMU configuration for precision agriculture,...
Removable J1939 logger for individual machine durability and validation work. 2x CAN with UDS (ISO 14229) and XCP/CCP support. 4 analog inputs, removable SD up...
Edge platform for autonomous tractor and agricultural machinery applications. Deterministic CAN capture underneath, on-vehicle compute above for steering algorithms, implement positioning, predictive maintenance and OTA...
Our applications engineers work with agricultural OEMs and construction equipment manufacturers. Describe the machine, the network architecture and the telemetry requirements.
What engineers say
The REXGEN Air is a fantastic piece of equipment and really makes it so easy to get accurate data, quickly. As a company we were hesitant that a datalogger was right for us but the support that Influx Technology gave really helped us to see the value straight away.
REBEL LT helped us in logging Tractor ECU data along with Additional Sensor Data with the help of K-BOX.
Software ecosystem
REXGEN Air ships with REXDESK for J1939 and ISO 11783 (ISOBUS) configuration. Fleet operations route through the cloud platform for upload management, fleet inventory, OTA configuration and firmware updates. K-TC instrumentation modules pair with K-CAL for thermocouple calibration with a live oscilloscope view. Every Influx Technology data logger and instrumentation module ships with free companion software. No licence fees, no per-seat charges, no annual subscription costs.
Explore REXDESKLogger configuration, J1939 and ISO 11783 (ISOBUS) 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 and REXGEN 2 support ISO 11783 (ISOBUS) over CAN natively. ISOBUS is treated as a CAN bus at the physical layer, with PGN-based filtering configurable in REXDESK. Both chassis-side J1939 and implement-side ISOBUS traffic can log to the same device on the same time base.
SAE J1939 covers the chassis network on heavy-duty vehicles (engine, transmission, aftertreatment). ISO 11783 (ISOBUS) covers the implement network on agricultural machines (sprayer, planter, header, baler). Most modern agricultural machines have both. REXGEN Air and REXGEN 2 log both buses simultaneously without bridging or stitching data after the fact.
REXGEN Air buffers data to non-removable eMMC up to 32 GB when LTE coverage is unavailable. When coverage returns, the upload resumes automatically via FTP, FTPS, S3 or HTTPS. GNSS dead reckoning keeps the position trace continuous through coverage gaps in rural and remote field operations.
Yes. REXGEN Air supports over-the-air configuration and firmware updates via LTE. This is particularly valuable in agricultural deployments where machines are spread across regions and continents and physical depot access is impractical or seasonal.
For platforms that require motion, position and CAN evidence in one device, REXGEN 2 in its IMU configuration adds a 6-axis IMU and 18 Hz GNSS on top of CAN FD logging. Useful for steering validation, implement positioning, headland turn analysis and autonomy testing work. The IMU configuration is an option on the same REXGEN 2 product page.
The K-TC module is a CAN-output K-type thermocouple system designed for high-temperature monitoring on agricultural and off-highway machines. 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 REBEL LT, REXGEN 2 or REXGEN Air record alongside J1939 and ISOBUS traffic on the same time base. Common deployments cover engine bay, exhaust gas temperature (EGT), hydraulic oil and transmission temperatures.
REXGEN Pro is the edge platform in the Influx Technology range: deterministic CAN capture underneath, on-vehicle compute above. For agricultural and off-highway machinery, REXGEN Pro fits OEMs running on-vehicle applications: steering algorithms and implement positioning for autonomous tractors, predictive maintenance computation on harvesters, and OTA module updates across distributed agricultural fleets. REXGEN Air handles capture-and-stream. REXGEN Pro handles capture-and-compute. REXGEN Pro is enquiry-only, so discuss your application with our engineering team.
Describe the machine platform, the network architecture and the deployment scale. Our applications engineers will scope the right logger and instrumentation configuration for fleet telemetry, precision agriculture or durability validation work.
