EAO Ltd is the expert partner for the supply, design and integration of innovative, intuitive and, reliable, human machine interfaces and automation systems. EAO is also a global specialist in developing customer-specific projects. Within the UK, EAO Ltd is also the principal representative for Sanyo Denki Corporation form Grayhill Inc. EAO’s product range includes water- and oil-sealed illuminated pushbuttons, indicators, emergency stops, rotary switches and keylocks, together with a range PCB-mount tactile switches. Sanyo Denki and Grayhill EAO’s UK sales office also represents Sanyo Denki for its range of Cooling Fans and Stepper Motor Systems, as well as Grayhill for its full range of Rotary Switches, Keypads and DIP Switch products. US manufacturer Grayhill is a world-leader, supplying state-of-the art products to customers who appreciate quality at competitive prices whilst Sanyo Denki is a leading manufacturer with a reputation for creating products of unparalleled reliability.