City Technology specialises in the design, manufacture and supply of high quality gas sensors to OEM manufacturers of gas detection equipment. From its small beginnings on London’s City University campus in 1977, City Te......City Technology specialises in the design, manufacture and supply of high quality gas sensors to OEM manufacturers of gas detection equipment. From its small beginnings on London’s City University campus in 1977, City Technology has grown into an international business employing over 300 staff and operating from purpose-built production and research & development facilities in the UK and Germany. City Technology is part of Honeywell – a $26 billion diversified technology company employing 120,000 in 95 countries around the world. As Honeywell’s leading brand for gas sensors City Technology supplies a wide range of gas sensors including the Sensoric and Sixth Sense product ranges. We supply our extensive range of gas sensors worldwide, supported by sales hubs in Portsmouth, Bonn, Shanghai and Chicago. Our sensors are used in a broad range of applications to protect people and property, preserve the environment and improve safety and comfort.