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We specialize in creating user interface devices that communicate via CAN-bus (J1939 and CANopen protocol) to control onboard systems. A standard range of keypads, joystick/encoders, and displays are offered as base products ready for quick, cost-effective customization. These products simplify mechanical installation into the vehicle cab and electrical integration with the vehicle’s control units.

Grayhill takes a proactive approach to help identify job specs. Our engineers look beyond basic functionality to improve operator efficiency and ergonomics. This approach yields more intuitive controls that reduce operator fatigue and increase productivity. They optimize product design to simplify installation into the vehicle cab which reduces the OEM’s assembly time. Further, these custom products are programmed for easy integration with the vehicle’s onboard control unit.


  • Harvesters        

  • Sprayers

  • Tractors

  • Turf Mowers


  • Aerial Lifts

  • Bulldozers

  • Cranes

  • Excavators

  • Graders

  • Loaders

  • Paving Equipment

  • Skid Steers

Other Vehicles 

  • Boats   

  • Trash Haulers

  • Municipal Vehicles

  • Snow Groomers

  • Snowmobiles

Our standard products include rotary switches, optical encoders, mechanical encoders, CANbus displays, and CANbus keypads. Please click here to see more.

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