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Sandia SAI-340 Quattro Plus 5-in-1 Standby Instrument

Sandia SAI-340 Quattro Plus 5-in-1 Standby Instrument


Item:   AIS 706171-00
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Sandia SAI-340 Quattro Plus 5-in-1 Standby Instrument
Displays Airspeed, Attitude, Altitude, Slip and (I)VSI with Backup Battery

Download the Installation Manual Here
Download the Pilots Guide Here

  • Displays precision airspeed, attitude, altitude, slip and Instantaneous Vertical Speed (I)VSI in an EFIS presentation
  • MFD is an excellent replacement for steam-gauge standby instruments in retrofit EFIS equipped aircraft
  • Backup lithium battery provides up to 2 hours battery life
  • Fits a 3-inch panel hole
  • Weighs just over 11 ounces
  • TSO approved

The SAI 340 QUATTRO PLUS is a five-in-one attitude, airspeed, altitude, slip indicator that now includes Instantaneous Vertical Speed (I)VSI. With smooth, high-quality graphics and an easy to read EFIS presentation, the Quattro Plus makes a great addition to a traditional six pack panel. This multi-fuction display (MFD) is a cost-effective way to replace steam-gauge standby instruments in retrofit EFIS-equipped aircraft.

Additionally, the Quattro Plus has a built-in battery which provides up to two hours of stand-alone operation if needed—thus ensuring an added level of redundancy. The MFD fits directly into a standard round 3-inch instrument hole with no panel modification, making it a near drop-in installation.

The FAA has granted SANDIA Aerospace an additional TSO on their popular SAI 340 Quattro multi-function indicator. In addition to Attitude, Altitude, Airspeed and slip, the SAI 340 is now TSO’d for (I)VSI. (I)VSI is Instantaneous Vertical Speed. Unlike a standard VSI that has a 6-8 second lag, the SAI 340 gives virtually immediate vertical speed indications. The vertical speed is shown on the SAI 340 in both a tape and digital format. In addition to the (I)VSI, the new software version also adds an adjustable Altitude Bug.

  • Electrical: Input Voltage 10-32Vdc; Current 2A Max
  • Dimensions: 3.52” x 3.25” x 1.7” (Depth dimemsion is behind panel)
  • Weight: 0.70 lbs
  • Environmental: Temperature -20o to +55o C
  • Altitude -1500 to +35,000 Ft; Airspeed 20-400 Kts
  • Battery: Li-Poly, 30 Minutes Minimum; 2 Hours Nominal
  • Certification: TSO-C2d (Type B), TSO-C3e, TSO-C4c, TSO-C10b (Type I), TSO-C113a, TSO-C201 (A5 HX T7), TSO-C8E (Type B), RTCA DO-347, DO 178C (Level C), DO 160G
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