SHJ Electronic Co., Ltd., established in 2005 in Shanghai, is a manufacturer of low cost control systems. We are specialized in Modbus RTU/ASCII, Modbus/TCPIP protocol, USB, RS232, RS485, CAN, Zigbee and Ethernet hardware. We can do such signal inputs & outputs as 0-100mv, 0-500mv, 0-10V, 0-5V, 0-20mA, PT100, dry contact, pulse, frequency inputs and open-collector, relay, 24VAC triac, 0-10V, 0-5V, 0-20mA outputs.We also can design a close loop controller with a small PID control.Maybe the IO modules we developed do not match your project requirements, but we can design and develop modules/products with any combination of listed signals inputs/outputs and listed communication method.There are spare ROM/RAM to add more features according to users field application and easy update these modules through ethernet/RS485 port. We will try our best provide flexible modules from hardware to firmware and help customer get their project going on smoothly.We can also work on OEM's and customize it
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