NO BABY LEFT BEHIND!

Child car seat monitoring systems comprised of a wireless proximity sensor for monitoring whether a harness of a child car seat is buckled and downloadable mobile software application for communicating with the sensor and generating alerts to the possibility of an unattended child in the child car seat; child car seat monitors comprising wireless proximity sensors for attaching to buckles of harnesses for a child car safety seat to indicate whether the harness is buckled; and software applications for use with child car seat monitors to generate alerts