Quick Start Guide

Updated on Mar 4, 2026

The Racelogic Door Handle Force Sensor (RLACS344) quantifies door operation for ADAS Testing and Development.

Accurately measure the activation of a vehicle door handle and the delta in the force applied to the vehicle door handle and operating mechanisms. This highly sensitive sensor provides a voltage output proportional to the input force, offering invaluable data for the Euro NCAP Dooring assessment. The force applied to the sensor can be directly attributed to user-defined specific testing requirements such as ‘Toperate’, ‘TLatch’ and ‘Topen’.

Force sensing resistor in use
  • Precise Force Measurement:
    Delivers a voltage output directly corresponding to the force applied, enabling highly accurate quantitative analysis of door handle operation.
  • User-Definable Operational Regions:
    Enhance your Dooring analysis with the ability to define critical force thresholds including:

Toperate
The region from initiating the door handle lever to the point if ‘Tlatch’. force threshold required to initiate the door opening mechanism.

Tlatch
The force at which the door latch begins to disengage.

Topen
The point at which the door fully opens.

  • Simple Integration
    Designed for easy placement on door handles or door operating mechanisms and straightforward electrical connection to analogue voltage inputs of your data acquisition system.
     
  • Robust & Reliable
    Built to withstand the demands of automotive testing environments, ensuring consistent and repeatable results. The force sensor pad can be easily removed and replaced should damage occur.
     
  • Real-Time Feedback
    Provides instant status output when used in combination with VBOX Test suite.
DescriptionValues
Output TypeLinear voltage dependent on power source
Operating Temperature Range- 20 °C to + 85 °C
Sensing Range20 g to 5 kg
SizeSensor pad = Ø 30.5 mm.Active area = Ø 25.42 mm.
Wire ColourFunction
RedPower
Green/BlackGround
YellowSignal
BlueSignal Ground
  1. Wire the green/black wire to the ground pin (15).
  2. Wire the red wire to the power pin (9).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 4 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 4 here.

Dooring Sensors wired to 15-pin analogue input connector
  1. Wire the green/black wire to the ground pin (15).
  2. Wire the red wire to the power pin (9).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 4 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 4 here.

Dooring Sensors wired to 15-pin analogue input connector
  1. Wire the black wire to the ground pin (15).
  2. Wire the red wire to the power pin (14).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 1 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 3i here.

Dooring Sensor wired to analogue input connector_25pin
  1. Wire the black wire to the ground pin (15).
  2. Wire the red wire to the power pin (14).
  3. Wire the yellow wire to a positive pin in an available Isolated Channel pair.
  4. Wire the blue wire to a negative pin in an available Isolated Channel pair. 

    In this example, we are using channel 1 for the signal wires.

You can find the pin information for the Analogue Input connector on VBOX 3i here.

Dooring Sensor wired to analogue input connector_25pin