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ACK E-04

ACK Avionics has developed our E-04 model. The E-04 is a 406 / 121.5 MHZ emergency locator transmitter for general aviation.

E-04 ELT Battery

Lithium (LiMnO2) battery replacement for use with ACK model E-04 406 MHz ELT. 5 year rated battery.

E-04R ELT Retrofit Kit

The E-04R Retrofit Kit is a direct replacement for the model E-01 ELT's