6-channel Analog Input, 2-channel Analog Output, 2-channel Digital Input And 2-channel Digital Output Module, PoE, Ethernet, Modbus/TCP, Modbus/UDP, Flash, SRAM, EEPROM memory, 10/100Base-TX

8-channel Isolated Sink Type Open Collector Output and 8-channel Isolated Digital Input Module with 32-bit Counters, with PoE, Ethernet, Modbus/TCP, Modbus/UDP, Flash, SRAM, EEPROM memory, 10/100Base-TX

G-4500-SIM300: M2M Mini-Programmable Automation Controller, CPU 80186, 80 MHz, 512 KB SRAM, 512 KB Flash, MiniOS7, 16 KB EEPROM, 2x RS-232, 1x RS-485, Ethernet, 3 Digital Input Channels, 3 Digital Output Channels, 8 Analog Input Channels, GPS, GPRS / GSM modem, WT-25+50.

G-4500D-SIM300: M2M Mini-Programmable Automation Controller with LCD display, CPU 80186 80 MHz, SRAM 512 KB, Flash 512 KB, MiniOS7, 16 KB EEPROM, 2x RS-232, 1x RS-485, 1x Ethernet, 3 Digital Input Channels, 3 Digital Output Channels, 8 Analog Input Channels, GPS, GPRS / GSM modem, WT-25+50.

G-4500P-SIM300: M2M Mini-Programmable Automation Controller with GPS function, GPRS/GSM modem, WT-25+50, CPU 80186 80 MHz, 512 KB SRAM, 512 KB Flash, MiniOS7, 16 KB EEPROM, 2x RS-232, 1x RS-485, 1x Ethernet, 3 Digital Input Channels, 3 Digital Output Channels, 8 Analog Input Channels,