... alarmOverspeed alarm, acceleration alarm, motion detection alarmCommunication interfaceSerial interfaceSupport one RS232 interfaceNetwork interfaceRJ45, 10M/100M self-adaption Ethernet interfaceWireless transmission (optional ... priority transmission strategy, remote downloadPTZ controlSupportGPS(Option),Support built-in GPS module with geographic coordinate, speed, information, etcG-sensor Built-in ...