As large trucks use more electronics, it's becoming easier to monitor things like tires, door latches, temperature sensors and cargo sensors. Digi International's ConnectPort™ X5 provides an array of connectivity options, supporting cellular, Wi-Fi, GPS, vehicle area networks and satellites. Digi's XBee® 802.15.4/ZigBee or point-to-multi-point 2.4- GHz radio technology lets drivers deploy low-power sensor networks throughout the vehicle, giving them real-time information about critical elements on their trucks. The system also lets drivers use Wi-Fi-enabled devices like vehicle displays and handheld devices. Fleet managers can use satellite or cellular links to monitor vehicle locations, even employing GPS to fence vehicles into certain areas.