Welcome to Grayhill Inc.

Grayhill is the leader in electronic operator interface solutions, with more than sixty years of history designing and manufacturing quality switches, optical encoders, joysticks, keypads, custom front panels, and panel computers for applications in the agriculture, construction, defense aerospace, medical, automotive and electronics industries.

We have the expertise in design, development, qualification, production, testing and support to be your full-service partner every step of the way. We are committed to working with your team to design solutions for your unique challenges, whether you need heavy-duty durability or the ultimate in precision.

Our long history of product development allows us to offer a wide variety of rugged and reliable building blocks, including keypads, joysticks, displays, and many varieties of switches and encoders. These versatile components allow Grayhill to design solutions that provide intuitive interfaces between your technology and your users.  

This approach has made our reputation as Experts in Cab Controls.  Grayhill has extensive experience designing user interface systems for the off-highway industry, particularly for vehicles in the agriculture and construction industry.  We understand the operating environment and ergonomic considerations necessary to develop sophisticated and intuitive systems.

Select one of our dependable standard products, or let our team design, qualify and manufacture the perfect solution for your needs. More About Us





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Distinctive Controls Built to Last
3K Keypads

3K Series CAN-bus Keypads

Grayhill's CAN-bus Keypads seamlessly integrate with on-board electronic systems. Their sealed and compact construction make them ideal for agriculture and construction vehicles.
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3J Series Vehicle Display Controller

Grayhill's Vehicle Display Controller is an ergonomically designed interface device for navigating through on-screen software, scrolling through menus and selecting options.
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3J Vehicle Display Controller

3D Vehicle Mount Display

3D Series MicroDisplay

With Grayhill's CAN-bus MicroDisplay it's easy to create custom graphics, text and even gauges for J1939 data without having to learn native coding.
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Recent News

Wondering what is a NavCoder? A NavCoder is a three-in-one human interface device that combines a joystick, an optical encoder and a pushbutton on a single shaft to provide directional and rotational control.

Grayhill is excited to announce the release of firmware 4.0 for their 3D Series MicroDisplay.

In an article entitled "Easy to Control", the author explores advancements in human-machine interface technology.