Welcome to Yeo-Kal Electronics Pty Ltd, a wholly Australian-owned private company with a rich history of designing and manufacturing scientific instruments for water quality and oceanography. Established in 1975 by Geoff Yeomans and Jim Kalopedis, Yeo-Kal has grown into a well-respected brand with a global presence.

Based in Brookvale, NSW, Yeo-Kal prides itself on delivering reliable, affordable, and high-quality instruments that measure a range of parameters associated with water quality and oceanography. From temperature and depth to conductivity and salinity, Yeo-Kal's instruments are trusted by government agencies, private contractors, construction companies, water authorities, and universities worldwide.

Yeo-Kal's commitment to quality is evident in their state-of-the-art factory, which is equipped with advanced machinery and staffed by expert personnel. This investment ensures that Yeo-Kal's products are robust and meet the highest standards of quality.

One of Yeo-Kal's standout products is their highly accurate salinometers, which were used to measure seawater salinity. These salinometers were critical for scientific research into ocean circulation and climate change and have been used in some of the world's most challenging environments, including the Antarctic. Although this product is now retired, Yeo-Kal continues to innovate and develop new instrumentation that meets the ever-evolving needs of the industry.

To remain at the forefront of the industry, Yeo-Kal has an ongoing research and development program led by Dr. Maolian Xu, a senior design engineer with a PhD in underwater physics and electronics engineering. Dr. Xu is responsible for developing new instrumentation that meets the ever-evolving needs of the industry.

At Yeo-Kal, customer satisfaction is of paramount importance. The company offers fast service for instrument maintenance and calibration, with technical advice, consumable parts, and calibration standards readily available to customers. Yeo-Kal has provided telemetry monitoring systems for remote offshore, estuarine, and inland waterways.

Yeo-Kal Electronics Pty Ltd is a wholly Australian-owned private company with a proud history and is trusted by customers around the world, Yeo-Kal is a brand that you can rely on. From their advanced factory to their ongoing research and development program, Yeo-Kal is committed to delivering the highest quality instruments and customer service.