Position Sensors, Speed Sensors and Potentiometers

Seat belt sensor/switch.
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Seat belt sensor/switch.

Automotive, airlines, land and off-road vehicles security encompasses a wide range of best practises and experience. At Piher we provide cost-effective solutions that are remain accurate through time.

Based on contactless (non-contact / wear-free) hall effect working principle, we provide custom reed switches sensor detection assemblies that afford superior performance detecting when a seat belt tongue has been engaged even under extreme environments and challenging conditions such as dust, dirt, high vibration, extreme temperatures, etc.

Only two wires and no external magnets or moving parts are required, thus saving space, time, cost and set-up operations for seat belt buckle reminder sensing.

Piher customizes the sensor / switch solution to fit into the customer´s buckle own design.

seat buckle sensor switch

▪  Selectable working principle: hall effect / reed switch seat belt buckle switches.
▪  Robust  & reliable modular design.
▪  Sealed for harsh environments.

Fully sealed and with virtually unlimited life (maintenance free), the sensor will detect when the buckle metal part is insterted and will reliably change its state from open to closed or viceversa.

Full costumisation is available including electrical and mechanical characteristics, size and integrated connectors. 

Seat Belt sensor in aerospace usage is mandatory during takeoff and landing.
The seat belt switch helps prevent forget to buckle up. It is usually connected to a  electronic control module that uses both audio and visual warnings to alert when the seat belt is not latched.

Other seat positions sensors and security-related airbag controls have been developed by Piher and offer flexibility of:

  • Size.
  • Plastic & metal materials.
  • Threads and flanges.
  • Wires and connectors.
  • Switching points & measurement ranges.
  • Operating temperature.
  • Sealing levels.

With over 40 years serving to most of the car brands, the pursuit of the most cost-effective total solution for your needs is firmly embedded in our business philosophy, so whatever your requirements may be, be sure that Piher will deliver.

Applications examples:

  • Bus/Car seat belt switch.
  • Off road vehicle seat belt switch.
  • Marine seat belt switch.
  • Airplane seat belt switch.
  • Retractable seat belt safety switch.
  • UTVs, heavy trucks, military HMMWVs, school buses, transit buses, tractors, mowers, emergency vehicles, lift trucks, agricultural and construction equipment, golf carts, limos, police vehicles, wheelchair securements, Electric Cars and Individual fall protection systems.

Other Piher's hall effect switches examples:



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