Safety Never Looked So Good Introducing Sandia Aerospace SAI 340 - Quattro P/N 706171-00 * TSO'd Airspeed, Attitude, Altitude and Slip * Full Solid State Reliability * Li-Poly Backup Battery : 30 minutes minimum, 2 hours nominal * Lightweight at only .51 lb and dimensions: 3.52 x 3.52 x 1.4 in * Air-Transport Quality Graphics * Standard 3" Instrument Hole Mounting For more information, please contact your Dallas Avionics sales representative. US/Canada 800-527-2581/214-320-9770 dallasavionics.comhttp://www.dallasavionics.com