The all new ARTEX ELT 4000 is a transport-grade Emergency Locator Transmitter (ELT) that utilizes alkaline batteries. This innovative power source means that the ELT 4000 is completely exempt from FAA special condition requirements. In the event of an emergency, the ELT 4000 can be activated manually or automatically to quickly alert local search and rescue teams of your situation. Be Prepared for the Unpredictable: - Lower battery expense per cycle - No hazmat shipping - Easy disposal - Integrated NAV interface (ARINC429)