The Laerdal 945021 Label Status AED Trainer is designed for use with Laerdal AED training devices to clearly indicate the operational status during simulation sessions. It helps learners easily understand device readiness and operational states, improving the realism and effectiveness of CPR and AED training. This label is an essential accessory for maintaining structured and accurate training scenarios in emergency response education. It is suitable for use in hospitals, classrooms, and simulation training environments.