Omnisystem 

Omnisystem Co.,Ltd. manufactures and sells automatic meter reading systems in South Korea. The company provides single-phase and three-phase remote automatic meter reading systems, digital power meters for automatic reading, digital water metering systems, digital hot water metering systems, digital temperature and gas meters, RF modules for remote automatic meter reading, automatic meter monitoring telecommunication devices, automatic meter data monitoring software, integrated measurement and billing system software, Internet modems for automatic meter reading, power and light control equipment, pre-paid power and water meters, and digital installation meters, as well as digital power meters under the AMSYS brand. It also offers smart cards. The company was founded in 1997 and is headquartered in Yeoju, South Korea.