RaceCapture-Pro MK4


RaceCapture/Pro MK4 is our latest generation motorsports telemetry system, packed with features for Endurance Racing, Sprint Racing, Autocross, Time Attack and more.

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How To


Quick Start

Powering Up

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Using optional OBDII cable (2008+ vehicles)

  • Plug one end of the cable into the RaceCapture unit
  • Plug the other end of the cable into your car's OBDII port.
  • Power and OBDII data will be provided to RaceCapture/Pro.

Powering via 12v

Plug the supplied power + CAN data pigtail into the RaceCapture system.

  • Connect Red to 12v
  • Connect Black to Ground

Testing on the Bench

You can power RaceCapture/Pro with just the included USB cable. Simply plug one end into your computer, and the other end into the USB connection on the front of the unit.

  • Note: When powering only with USB, the voltage reference output will only be at approximately 4.7 volts, which can cause a mis-reading of sensor values. When precise sensor readings are required, provide 12v power to RaceCapture.

Install the RaceCapture app

On Desktop

USB Drivers
  • Windows 10/11: Windows 10 has built in USB drivers that support RaceCapture; no separate driver installation needed.
  • Windows XP, 7, 8: Not supported due to outdated video drivers, but may work depending on the video hardware used. USB drivers will require installation instructions below.

On Mobile

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On Raspberry Pi

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More advanced users can run the RaceCapture App on a Raspberry pi for a more dedicated dashboard experience.

Connect to your RaceCapture system (dashboard)

Use an Android, iOS or Raspberry Pi device as a dashboard in the car:

Bluetooth (Android Only)

In Android Settings, pair your device with the RaceCapture system.

  • Note: Default bluetooth pin is 1234. You can change this later under Setup / Wireless in the app.

WiFi (iOS or Android)

In your mobile device WiFI settings, connect to the RaceCapture WiFi network.

  • By default, RaceCapture will setup a WiFi network starting with 'RaceCapture', with no password. You can immediately connect to this network.
  • Note: You can change the WiFi password later under Setup / Wireless in the app.

Launch the RaceCapture app

Once you've linked the Bluetooth or WiFi (Mobile), or USB (Windows or OSX) launch the RaceCapture app.

Automatic Setup and Verifying Connectivity

The RaceCapture app will guide you through a brief automated setup and tour. During this process the connection to RaceCapture/Pro will be verified.

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Next Steps

Using the RaceCapture app

See the RaceCapture App User's guide for a full tour of using the app and setting up your system.

Connecting sensors and accessories

See the Plug and Play harness guide to learn how sensors and devices connect to your system


Analog Inputs
Channels 9 (8 external + 1 internal battery/supply voltage)
Voltage range 0-5v
Input impedance Greater than 1M ohm
Voltage Protection 400v (intermittent)
ADC precision 12 bit
Maximum sample rate 1000Hz
Mapping Raw / linear formula / interpolated map
Digital I/O
Channels 4
Output mode type Open Drain
Output current capacity 1A, inductively clamped
Input mode voltage range 0-12v
Input voltage protection 0-40v
Maximum sample rate 1000Hz
Timer inputs (RPM / Frequency)
Channels 4
Voltage Protection 400v (intermittent)
Maximum sample rate 1000Hz
Mapping RPM, Frequency
Voltage Reference
Output Voltage / Capacity 5v / 500mA
CAN Channels 2
CAN baud rate 125K, 250K, 500K, 1M Baud
CAN filters 14 per channel
Protocol Support OBDII PID, custom CAN mapping
CAN Bus CAN 2.0 compatible, 1M baud
CAN termination Software controlled
Cellular Telemetry (Optional)
Optional Cellular 4G LTE worldwide compatible
Maximum Sample Rate 10Hz
WiFi 802.11bgn
WiFi Modes Access Point, Infrastructure
Bluetooth Bluetooth 2.0 EDR
Maximum Sample Rate 50Hz (Bluetooth and WiFi)
Constellations Supported GPS, GLONASS, BeiDou, Galileo
Antenna Type External active antenna
Sample Rates supported 1 / 5 / 10 / 25Hz
Accuracy 2.5M CEP
Inertial Motion Unit
Accelerometer Channels 3 (X/Y/Z) (2G, 4G capable)
Gyro Channels 3 (Yaw/Pitch/Roll) (1000 degrees/sec)
Micro SD Up to 32GB (SDHC)
CAN bus direct mapping 100 direct CAN mapping channels
Channel Support 200
Predictive Lap Timing Built-in
Track Mapping Circut and point-point
Track maps 200 built in for autonomous auto-detection; unlimited via RaceCapture app with interactive track map builder
Sectors per track 20
Logging file format Plain CSV
Dimensions 150 x 100 x 30mm (5.9 x 3.35 x 1.18in) enclosure; 5mm mounting ears on 140mm centers; Enclosure body 85mm (connectors extend 15mm beyond main enclosure body).
Temperature range -40 to 85c
Environmental Connectors: IP67 / enclosure IP51
Weight 255g (12 oz)
Connectors M12 12P female (Analog inputs); M12 12P female (Digital / RPM inputs); M8 6P female (CAN1/CAN2/Power); M8 4P female (CAN1/Power); SMA (GPS); RP-SMA (Cellular)
Power supply and Consumption (max) System voltage: 9 - 24v (40v surge protection) / Power: Main System: 0.6W With Wireless: 1.6W With Cellular Telemetry: 8.6W With Cellular Telemetry and Wireless active: 9.6W
Recommended Fuse 5A