Electronic sensors for remotely tracking and transmitting the location of moving and stationary vehicles, trailers, cargo containers and water vessels; electronic transmitters for remotely monitoring and transmitting information regarding safety conditions of moving vehicles such as unlocked doors or windows, speed and direction; electronic sensors for remotely monitoring and transmitting information with respect to air quality and temperature of both moving and stationary vehicles; electronic sensors for remotely monitoring and transmitting the status of land and sea shipped cargo; electronic sensors for remotely monitoring and transmitting maintenance information of land vehicles, featuring the condition of tire pressure, brake linings, hub mileage readings, exterior or interior damage; electronic sensors for remotely monitoring and transmitting information with respect to refrigeration unit operating condition or status on both land vehicles and maritime vessels; electronic sensors for remotely monitoring and transmitting information with respect to drop/hook status and tethered/untethered status of both land vehicles and maritime vessels; and electronic sensors for remotely monitoring and transmitting information with respect to equipment pooling status of both land vehicle and maritime vessel cargo fleets