Force Sensor - FN4055

Force Sensor - FN4055

Order Catalog


Measurement Specialties has applied our decade of experience serving the automotive crash test industry to design the ultimate crash test seat belt restraint sensor. Created for the automobile industry, the FN 4055 measures with excellent accuracy the forces exerted on the seat belt. Only the actual compression upon the seat belt is measured, as the sensor is insensitive to contact from the crash test dummy. The unit is designed for very low range and is particularly suited for child security testing. It is protected against overload by mechanical stops. For a new example of similar application with higher range, please read the datasheet of EL20-S458. With many years of experience as a designer and manufacturer of sensors, Measurement Specialties, Inc. often works with customers to design or customize sensors for specific uses and testing environments.


  • Protected against overload
  • Usable without cutting the belt
  • High accuracy
  • 250N range, higher range with EL20 sensors