Designed to help the pilot determine altitude by measuring existing atmospheric pressure, the altimeter translates the measurement into “height above sea level.” This is indicated on the dial of the instrument in feet, which requires setting the barometric pressure in the Kollsman window.

UNITED INSTRUMENTS 5934 series are FAA TSO'd 3"/ 3-pointer altimeters, intended for use with most single engine, turbo/piston prop aircraft. They are offered in 5934 and 5934A models with respective maximum calibrated ranges  of -1.000 to 20.000 feet and  -1.000 to 35.000 feet respectively. All lighted instruments require a light tray sold separately.

Product Features:

Affordable, certified 3-1/8" case for half the cost of existing systems

United series 5934

All units approved to FAA TSO (C10b,C2b and C4c)

Anti-reflective glass enhances visibility and reduces pilot fatigue

Altimeter available with right-hand or left hand knob 20,000 or 35,000 ft. Hg or Mb

All instruments are made in the USA

One year limited warranty

Product Specifications:

Typical Weight: 13 oz

Number of Pointers: 3

Barometric Setting: 28.1 to 31.0 in HG / 946 to 1050 mb

Calibrated Ranges: -1,000 to +20,000 or +35,000 feet

Static Pressure Connection: 1/8-27 ANPT

Installation: Removable Spring Nuts and screws

For additional information please consult the supplied documentation.

UNITED INSTRUMENTS 8000/8100 Series Air Speed Indicators (ASI) are FAA TSO'd for installation on certified aircraft. 

The 8000 Series ASI indicate the speed relative to the air at sea level altitude. The 8100 Series True ASI indicate the speed relative to the air at sea level or the desired altitude.The indicator has an inner dial to indicate true airspeed. The altitude and temperature are the conversion factors used to obtain this reading with the use of a setting knob. 

When properly connected to an airspeed tube, the 8000/8100 Series airspeed indicators measure the differential pressure developed between the pitot and static opening. 

The pressure is indicated in units of airspeed mph (M) and/or knots (K).

Product Specifications:

Certification: FAA TSO C2b 

Case Configuration: MS33638, 3 inch

Typical Weight: 0.7 pounds

Static, Pitot Pressure Connector:   1/8-27 ANPT

Installation: Removable spring nuts and #6-32 screws

Lighting: Available upon request. All lighted instruments require a light tray sold separately. Please refer to offered SIGMA-TEK 5000B 14V or 28V Light Tray.

The vertical speed indicator is a precision instrument which provides an accurate indication of rate of change of altitude. UNITED INSTRUMENTS TSO'd (TSO-C8b) 7000 Series vertical speed indicators (VSI) offer several configurations and have been selected as standard equipment by aircraft manufacturers worldwide for use in most production aircraft.. They are temperature compensated and provided with a zero adjustment screw on the face of the case in the seven oclock position. Power: Static system. Size: 3-1/8" x 3-1/8" x 4", Wt. 0.7 lb. Available in unlighted and lighted versions.