Along with built-in real time clock, G-4513PD-3GWA machine-to-machine (M2M) programmable automation controller features GPS function that supports 32 channels and NMEA 0183 protocol. Solar charger helps conserve power, and LCD lets users view status at a glance. As 3G controller, this unit supports GSM 850/900/1,800/1,900 MHz and WCDMA 850/900/1,900/2,100 MHz. Communication capabilities – RS-232, RS-485, and Ethernet – allows integration with existing I/O and SCADA software.