SPECIFICATIONS :
Size:  2.093W x 2.250"H x 7.375"L
Weight:  .68 lbs. 
Lighting:  27.5 or 5 volts DC
Temperature Range:  -20C to +55C 
TSO Compliance:  C41c, Class A
Environmental Cat.:  AIDI/A/SKP/XXXXXSZBAAA 
Design:  All solid-state, single chip microprocessor controlled with gas discharge display multi-plexing and Electrically Alterable Read Only Memory (EAROM) for power-off frequency storage.
Frequency Range:  190 kHz to 1799 kHz in 1 kHz increments, optional 2182 kHz international distress marine frequency.