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RACELOGIC Support Centre

Technical Specifications

This page contains the technical specifications for VBOX 100 Hz Speed Sensor (v5) units.
GNSS Specifications
Accuracy     0.1 km/h (averaged over 4 samples)
Update rate     100 Hz
Maximum velocity     1200 mph
Minimum velocity     0.1 km/h
Resolution     0.01 km/h
Latency     20 ms (fixed)


Absolute Positioning
Accuracy* with RTK     V: 10 mm; H: 5 mm 
Accuracy* Standalone     V: 1.8 m; H: 1.2 m
Accuracy* with SBAS      V: 1.2 m; H: 0.8 m
Accuracy* with DGPS     V: 0.5 m; H: 0.3 m
Update rate     100 Hz
Resolution     1.8 mm


Accuracy     0.05% (< 50 cm per km)
Units     metres/feet
Update rate     100 Hz
Resolution     1 cm


Accuracy     0.50 %
Maximum     20 g
Resolution     0.01 g
Update rate     100 Hz


Resolution     0.01°
Accuracy     0.1°


Resolution     0.01 s
Accuracy     0.01 s


Brake Distance Accuracy
Accuracy     ± 1.8 cm**


* Specifications will vary depending on the number of satellites used, obstructions, satellite geometry (PDOP), multipath effects, and atmospheric conditions. For maximum system accuracy, always follow best practices for GNSS data collection.

** Based on a trigger stop distance of < 50 m.

Supported GNSS Signals
GPS     L1 and L2
GLONASS     G1 and G2
Output data rate    

Selectable baud rate:

  • 125 kbit/s
  • 250 kbit/s
  • 500 kbit/s
  • 1 Mbit/s 

Software controlled CAN termination.

Data available     

Outputs: Satellite count, time, position, speed, course over ground, heading, vertical velocity, longitudinal acceleration, lateral acceleration, distance, DGPS status

Results: Trigger event time, trigger speed, start speed, end speed, deceleration test time, lap time, split time, radius of turn.


RS232 Output
Output data rate     Up to 100 Hz
Data available    
  • NMEA
  • Racelogic (compatible with VBOX Test Suite)


Ethernet Output
Output data rate     100 Hz
Data available     As per CAN data


Digital Output
Signal levels    

Low = 0 V, High = 5 V.

Max frequency 4.4 kHz

Output type     Speed or Lap Beacon


GNSS Antenna Supply
Supply voltage     5 V DC
Input Power
Input voltage range     7.5 to  30 V DC
Power     7.5 W (max)


Digital Input
Input function     Brake event trigger/track marker


RS232 Input

Input function

  • DGPS/RTK corrections
  • Configuration
Environmental and Physical 
Weight     480 g (approximate) 
Size (including connector)     139.21 mm x 78.5 mm x 38 mm
Operating temperature     - 20 °C to + 70 °C
Storage temperature     - 40 °C to + 85 °C
IP rating     IP67
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