Internet of Things (IoT) sensors collect data from vehicles and send it to fleet management software. This allows software to analyze information such as vehicle load, tire pressure, engine health, and acceleration to form reports providing insights into fleet productivity and expenses. Important sensors for better fleet management include fuel level sensors to track fuel usage, accelerometers to monitor driver behavior, load sensors for cargo tracking, cabin thermometers for temperature monitoring of cold supplies, and tire pressure sensors for vehicle maintenance needs.