Real time tracking units with management and controls of digital sensors. Low price version. GPS Receiver with 16 channels, internal memory for over 10,000 readings, if the GSM signal is lost for sending back all data later, Automatic reports time, distance and also angle based, robust case, 2 digital inputs and 2 outputs, remote control your objects easily. Open architecture offering the complete configuration of the units via Java Imlet programming, TCP/IP and UDP integrated, intelligent algorithm of acquisition, intelligent data compression algorithm to save on transmissions, RS232 interface, GPS NMEA Output for navigation purposes, 5 Geofence zones, events inputs analyzes and according to defined limits, built-in accelerometers, movement detection, consumption 200 ma rms maximum, LED status and more !