CL2000 - CAN bus data logger & USB interface

CL2000: CAN Bus Logger & USB Interface (+RTC)

The plug & play CL2000 CAN logger records CAN bus data to an 8 GB SD card and timestamps it with a real-time clock.

Further, the CL2000 can operate as a CAN bus interface for real-time USB streaming.

The CAN logger is ideal for vehicle fleet management (trucks, buses, harvesters, cars, ...), prototype field testing, diagnostics or reverse engineering.

Buy now - or read more below!

See also our CANedge for CAN logging use cases and CANmod.router for USB streaming.

Regular price
230 EUR
Unit price
In stock | Prices ex VAT/duties | PDF quotation  
 i  To get a PDF quotation, you can go through the normal purchase process via our webshop.

Under 'Payment Method', you can select 'Request PDF quotation'. Once you submit your request, we will send the PDF quotation in <30 minutes.

If you prefer, you can of course also contact us.

Simple To Use CAN Logger PLUG & PLAY

Configure in 2 min. Power via CAN connector. Auto-detect bit-rate

Log CAN Data to SD Card (No PC) STANDALONE

Log CAN data to 8-32GB SD card for months - no pc needed


Date & timestamp your data - vital for post analysis (incl. battery backup)

SavvyCAN CAN Bus Data Streaming LIVE STREAM

Easily stream raw & DBC decoded CAN data in SavvyCAN

Ultra Small Data Logger COMPACT

Fits the palm of your hand (6.6 x 4.3 x 2.4 CM) & weighs <50g

Cheap Low Cost Affordable CAN Logger LOW COST

The value/cost of the CL2000 is unbeatable

Zero Motorcycles logo
"We loved it! And I can put 5 of the CLX000 CAN loggers on our test fleet for the price of one Memorator!"
— Bryan Cady, Zero Motorcycles
BorgWarner logo
"The CL2000 has been a great device for us! Most importantly, the tech support was outstanding!"
— Brock Fraser, BorgWarner
Toyota logo
"The CL2000 is low cost & easy to use - and it enables data logging without any driver interaction with the logger"
— Rob MacArthur, Toyota

CANedge1 vs CL2000 CAN Analyzer

The CANedge1 is the 2nd generation of the CL2000. While the CANedge1 does not support streaming via USB, it is superior when it comes to SD card data logging.

In particular, we recommend the CANedge1 if you're going to log data at scale.

Learn more below - or contact us if in doubt!

Key changes comparison table CANedge1 Contact us

Compact CAN logger with SD

The CL2000 lets you log date & time stamped raw CAN data to an 8-32 GB SD card - 100% standalone with no PC required:

  • Power via CAN connector (<1W power consumption)
  • Auto-detect bit rate - no configuration required
  • Log raw CAN data in simple CSV style format
  • Easily extract data from the SD card via USB
  • Configure device via simple CONFIG.INI file
  • Silent mode, filters, transmit lists, cyclic logging
  • Timestamp data via real-time clock (battery backup)
Buy Now intro video use cases
CL2000 CAN bus data logger with SD card

CAN streaming in SavvyCAN

The CL2000 can stream raw CAN data via USB to your PC for real-time analysis in Pyton or SavvyCAN:

  • Stream raw CAN data in flexible views (filters, traces, ...)
  • Send CAN frames into your CAN bus with real-time control
  • Display human-readable form via DBC files (incl. J1939)
  • Create real-time plots of decoded signals like speed, RPM, ...
  • Highlight bit/byte changes per CAN ID via the 'sniffer view'
  • Quickly plot 'hypothesis signals' for reverse engineering
  • Load CLX000 log files for post processing analysis
Buy Now savvycan python

If you need to stream CAN bus data via USB you can use both the CLX000 and CANmod.router.

For pure streaming use cases, we recommend the CANmod.router as it offers multiple advantages:

  • It can be powered via USB while streaming - the CLX000 has to be powered via the DB9 (7-32V)
  • It offers 4 x CAN interfaces vs. 1 x CAN for the CLX000
  • It supports CAN FD on all 4 interfaces
  • It can handle 8,000+ frames/second vs. 1,000+ frames/second for the CLX000
  • It provides flanges for easier mounting in the field
  • It offers advanced configuration of e.g. bit-rates, filters

Convert & DBC decode log files

The CL2000 also comes with software tools for converting & decoding log files.

  • Convert log files to Vector ASC or PEAK TRC
  • Decode log files with DBC support in SavvyCAN
  • Export output as CSV for e.g. Excel pivots

Tip: See also our CANedge for SD logging.

learn more
CAN bus data software free DBC decoding

Check out our tech specs, use cases or FAQ - or buy now!

Do you have any questions?

Contact us

The CL2000 is ideal for medium to long-term standalone data logging and ad hoc data streaming.

Below we outline some of the typical applications for the CL2000 - also, check our CASES section for real customer use cases.

Note: We recommend that you also check out the 2nd generation CANedge.

CAN Bus Analyzer Vehicle Fleet Field Testing CAN Bus Data

Vehicle development & field testing

Need to develop, debug or optimize your vehicles?

The CL2000 provides OEM teams with an easy tool for collecting vehicle data. In particular, the CL2000 is useful for late-stage development. Here, the compact standalone functionality means that it can be added to large fleets of prototype vehicles for long-duration logging. After a few weeks or months, the data can be collected and analyzed for optimization and diagnosis.

Use case example: Tribine - Logging a Full Harvest Season of Data

Rare issue identification

Need to identify a an issue that only occurs e.g. every 3 months?

A non-standalone solution is simply not feasible. However, with the CL2000 you can log months of data from one or multiple vehicles or machines at low cost. With cyclical logging, the most recent data is prioritized if no space is left. Once the rare behavior is observed, you'll have all the data you need to troubleshoot it.

Use case example: Cohu - Diagnosing Rare Machine Errors

CAN Logger Identifying Rare Issues Standalone CAN Bus
Compliance Emission Data CAN J1939 OBD2 Logger

Compliance monitoring

Need to record and register vehicle data for compliance?

In some scenarios, you'll need to collect compliance or insurance related data - e.g. emissions (e.g. NOx, CO, HC, PM, ...). You may need to legally log this data from your fleet - even if you do not intend to use it actively. In such a setup, the CL2000 is the optimal solution: With an 8-32 GB SD, cyclical logging and RTC you can log all the CAN, OBD2, FMS or J1939 data you need - and collect it on a case-by-case basis.

Reverse engineering proprietary data

Want to reverse engineer proprietary data parameters?

If you're not the vehicle OEM, you may need to reverse engineer certain proprietary CAN data. Maybe you want to hack your car - or maybe you need to add custom functionality in a J1939 test setup. Through data logging, Wireshark streaming and analysis it is possible to identify what CAN IDs relate to what parameters - and how to offset/scale the data. Learn more in our CAN sniffer intro. You can stream data via SavvyCAN or Wireshark, both 100% free and open source.

Reverse Engineering CAN Bus Data Wireshark

See the docs section for the CLX000 intro, manual, firmware & software downloads.

Functionality Data logger and real-time CAN interface
LEDs Logger status via three externally visible LEDs
Firmware Supports free firmware updates for adding features
Software Free executables for conversion to ASC/TRC [Windows/Linux]
Free open source SavvyCAN software for streaming/analyzing CAN data + DBC decoding [Windows/Linux]
The .INI config / .TXT log files can also simply be opened in text editors or scripts [Windows/Linux]
Safety CE, FCC, IC, RoHS certified
Standard Compliant with physical layer standard ISO 11898-2
Identifiers Compliant with CAN specifications 2.0A (11-Bit ID) and 2.0B (29-Bit ID)
Bit Rate Bit rates up to 1 Mbps (manually configured or automatically detected)
Bit-rate auto-detection Yes
Protocol Support Protocol independent (i.e. able to log CAN, J1939, CANopen, OBD2, ...)
Filters Advanced message filtering on four configurable channels
Silent Mode Yes (does not affect CAN-bus transmission)
Fail-Safes The device does not terminate the CAN-bus internally
SD Card Replaceable 8 GB SD card (optional 32 GB)
Real-Time Clock Yes (CAN messages are time-stamped with 1ms resolution)
Control Signal Logging state (enabled/disabled) can be changed run-time using a CAN-bus control message
Heartbeat Signal Supports heartbeat signal to periodically indicate logger status
Cyclic Logging Supports cyclic logging mode (oldest log file is deleted when file system is full)
Down Sampling CAN ID specific message down-sampling to reduce frequency of logged messages
Transmit Transmit up to 20 customized CAN bus messages (e.g. for OBD2). Full real-time transmit control via USB
File System Standard FAT file system
Frames/Second The CL2000 can log/stream ~800-1000 frames/sec without loss. For higher busloads, see the CANedge
Power via CAN connector Power can be supplied from the DB9 CAN connector (log/stream) or via USB (data extraction)
Via CAN connector (DB9) Power supplied by the CAN bus (+7.0V to +32V DC)
Protection Reverse voltage protection on CAN-bus supply
Transient voltage pulse protection on CAN-bus supply
Power via USB Power supplied by USB (+5.0V DC) for data extraction/configuration
Consumption The logger's power consumption is approximately 1 W
Enclosure Robust, small enclosure
Dimensions 66.7 x 42.7 x 23.5 mm (L x W x H)
Weight 45 grams
Connector Standard D-sub 9 (DB9) connector (OBD2, J1939, "generic" adaptor optional)
USB Standard mini USB (B) connector for extracting data & streaming (cable not included)
Temperature Operating temperature: -20degC to +65degC
Real-Time Clock Built-in real-time-clock with calendar and battery backup
Date and time information are added to log files
Battery backup with more than two years of battery capacity
IP Rating IP Rating 40

Download PDF datasheet

The CANedge1 is the 2nd generation of the CL2000. While it does not support real-time streaming via USB, it's designed to be a superior CAN bus data logger. Below we list some of the key changes in the CANedge1.

Generally we recommend the CANedge1 for medium and large scale logging use cases - if in doubt, contact us.


  • Extractable SD: The SD can be extracted to transfer data at 80 MB/s (vs 0.5 MB/s for the CLX000 via USB)
  • Industrial SD: The CANedge uses an industrial SD card, improving performance and life time
  • Channels: 2xCAN channels, which enables logging from 2 CAN buses in parallel
  • Aluminum enclosure: New enclosure is far more robust, while still extremely compact
  • Power out: Power external modules via the 2nd port e.g. using a DB9-DB9/USB adapter

Log files & software/API

  • MDF4 log files: Popular binary MDF4 format - enabling high performance and fast processing
  • Configuration: Open source configuration editor can be used either online/offline via your browser
  • JSON Schema: Config files are based on the standardized JSON Schema concept, supported by many open source tools
  • asammdf GUI: Enables user-friendly MDF4 log file editing, DBC-conversion (incl. OBD2/J1939), graphical plots & more
  • Python API: Easily process your data at scale and automate the creation of e.g. reports/databases/dashboards
  • Converters: Open source C++ converters enable drag & drop/CLI conversion of MDF4 files into e.g. *.csv, *.asc, *.trc

Data logging

  • Lossless: The CANedge can log extreme bus loads with zero message loss (the CLX000 is limited to ~1000 frames/sec )
  • Advanced configuration: More advanced filters & transmit lists (e.g. up to 128 filters vs. 8 on CLX000)
  • Precision: 20x higher RTC resolution (50 micro seconds) - with advanced WiFi RTC sync
  • Boot time: Much faster boot time vs the CLX000 (~1 sec vs. ~10 sec)
  • CAN FD: The CANedge supports CAN FD (Flexible Data-Rate), making it future proof
  • LIN bus: Supports LIN bus data logging (slave mode)

The 8GB SD card provides an enormeous capacity for the CL2000 CAN bus data logger. While space consumption varies depending on your application, 8 GB will provide many weeks worth of continuously logged data. As most vehicles are not running continuously, this typically corresponds to months of data.

If you need to log data for very long durations, you can either upgrade to a 32 GB SD card - or pre-sample your data to a lower frequency (e.g. logging only every 10th or 100th message). Finally, you can add filtering to restrict your logging to certain CAN IDs or J1939 PGNs. For more details on this, see the product manual.

The CL2000 CAN bus analyzers can record data from any high speed CAN bus application (ISO 11898-2). In practice, this includes raw data from almost all vehicles (cars, trucks, tractors, forklifts, buses, motorcycles, ...) - as well as various production machinery, EV batteries and more. Most planes and boats also use CAN bus. In terms of protocols, this encompasses e.g. J1939, CANopen, NMEA, FMS, OBD2 and more.

For the specific case of OBD2 vehicle data, the CL2000 can transmit up to 20 custom CAN messages periodically, which means it can be used as an OBD2 data logger. Note, however, that you need to verify that your car uses CAN as basis for the OBD2 communication (this is the case for all US cars produced after 2008 e.g.). Also, note that all cars differ in the amount of OBD2 parameters they support - and the CLX000 is of course only able to record the supported data.

The CL2000 CAN logger can be powered via the DB9 connector. In cars, you'll typically need a DB9-OBD2 adaptor, while for e.g. trucks you may use a DB9-J1939 adaptor.

Once connected, the CLX000 will start recording data - and due to the extremely low power consumption, you can simply leave it in your vehicle. In most vehicles, the CLX000 will power off when the vehicle is powered off. If this is not the case, the power draw of the logger itself is still not an issue in regards to battery drain. However, if you're requesting e.g. OBD2 data in this scenario, the polling may wake up the car's ECUs. In this case, you should avoid leaving the CLX000 powered on in an unused car for more than a few days.

Note that the CLX000 can also be powered via USB when it enters 'mass storage device mode' - this lets you configure the logger on your PC without a separate power source.

The CL2000 CAN bus analyzer includes a real-time clock with battery backup. This means that your CAN bus data will be "timestamped" - i.e. every CAN frame logged on the vehicle network will get a timestamp so that you can link the observed CAN data patterns vs. real-time events.

This is vital in applications where you're comparing your CAN bus data vs. physical events (e.g. weather conditions, time of day, physical interaction with the vehicle, ...). Also, as soon as you're logging data across multiple days, it can be a mess keeping track of your data if you don't have the date and time recorded. In practice, we therefore always recommend to go for a CL2000/CANedge CAN logger if your aim is to primarily log vehicle/machine data, rather than stream it in real-time.