E-04 406 ELT / Emergency Locator Transmitter Order Today Prices May Vary. The all new E-04 ELT is a direct replacement for the model E-01 ELT's and transmits on 406 as well as 121.5 MHz. For increased accuracy it can also accept NEMA 0183 GPS position data from Garmin and Bendix/King GPS. Includes transmitter, lithium battery pack, external antenna, plug in audible alert and install manual. Size: 7.9" x 2.75" x 2.75" Weight: 3.5 lbs.