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12 - Dual Antenna Speed Sensor Technical Specification

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Accuracy 0.1 Km/h (averaged over 4 samples) Accuracy 0.05% (>50cm per Km)
Units Km/h or Mph Units Meters / Feet
Update Rate


Update rate 100Hz
Maximum Velocity 1000 Mph Resolution 1cm
Minimum Velocity 0.1 Km/h Time
Resolution 0.01 Km/h Accuracy 0.01 s
Latency 6.75ms Resolution 0.01 s



Absolute Positioning  Acceleration
Accuracy 3m                    95% CEP* Accuracy 0.5%
Accuracy with SBAS DGPS >1m                  95% CEP* Maximum 20G
Accuracy with RTCMV2 DGPS 80cm                95% CEP* Resolution 0.01 G
Accuracy with RTK DGPS*** 2cm                  95% CEP* Update Rate 100 Hz
Resolution 1.8mm    
Update Rate 100 Hz Heading
Height Accuracy 6 Meters 95% CEP** Accuracy 0.1°
Height Accuracy with DGPS 2 Meters 95% CEP** Resolution 0.01°


Brake Stop Accuracy (Trigger activated)
Accuracy +/- 1.8 cm** 


Note: Channels highlighted in Blue are for SL series units only.

Slip Angle Accuracies Pitch and Roll Angle Accuracies
<0.2° rms at 0.5m antenna separation <0.14° rms at 0.5m antenna separation
<0.1° rms at 1.0m antenna separation <0.07° rms at 1.0m antenna separation
<0.05° rms at 2.0m antenna separation <0.035° rms at 2.0m antenna separation
<0.04° rms at 2.5m antenna separation <0.028° rms at 2.5m antenna separation

* CEP = Circle of Error Probable

  95% CEP (Circle Error Probable) means 95% of the time the position readings will fall within a circle of the stated diameter

** Based on <50m brake stop distance

CAN Output
Output data rate 125Kbit, 250Kbit, 500Kbit & 1Mbit selectable baud rate. Software controlled CAN termination.
Data available  Position, vehicle speed, heading, lateral acceleration, longitudinal acceleration, satellite count, time, radius of turn, altitude, Distance from Trigger, Trigger Time, Trigger Velocity, True Heading. Slip angle, Yaw rate, Pitch/Roll angle, Longitudinal and Lateral Velocity
RS232 Output
Output data rate Up to 100Hz
Data available NMEA or RL Serial
Analogue Digital

Output data rate

0V to 5V DC

Output data rate

Low = 0v, High = 5v, Max. frequency 4.4Khz
Data available

Either Speed, Lateral Acceleration, Longitudinal Acceleration, or Lap Beacon

Data available Speed or Lap Beacon 
Input Voltage range 1st Gen = 6.5v – 30v DC  / 2nd Gen = 7v – 30v DC
Power 3.7w Max 
GPS Antenna 5V Active Antenna (inc)
Digital Input Cold Start Activate / Set Lap beacon Position
LED Power, Satellite Count,  Event Out
Environmental and physical
Weight Approx 250g
Size 140mm x 92mm x 31.85mm
Operating Temperature -30°C to +70°C
Storage Temperature

-40°C to +85°C

Connectors Deutsch ASDD Autosport
Rated IP66 
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Last modified
12:16, 11 Nov 2016


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