Opto 22 manufactures hardware and software products that link all kinds of electrical, mechanical, and electronic devices and machines to networks and computers. Opto 22 controllers, I/O (input and output modules), solid-state relays, and software are used for industrial automation, remote monitoring, data acquisition, and machine-to-machine (M2M) applications.

TransData is a worldwide supplier of high accuracy solid state multifunction energy meters, power and energy transducers, and a complete line of isolation relays and buffer devices. TransData has been making accurate solid state power and energy measurements since 1969; and since the introduction of their first solid state meter in 1981, TransData meters have established a proven track record for quality, accuracy and reliability that is unsurpassed in the industry.