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CAT-1 RTU ZHC493C Wireless Digital Input Module SMS Gateway with DO DI AI Ports
ZHC493C is a support 2-channel dry (wet) node detection, 1-channel relay (COM, NO, NC) Output, 1 channels of analog quantity (current 4~20mA) detection, 1 channel RS485/232 transparent network IO products, compatible with Modbus RTU/TCP protocol. With "remote control" as the core function, it is highly easy to use, users can easily and quickly integrate in o their own systems to realize remote and local control based on LTE, RS485/232.