United Instruments

What United Instruments does

United Instruments, Inc. is a Wichita, Kansas-based manufacturer of precision aircraft instruments founded in 1967, operating from a 16,000 sq. ft. FAA/EASA-certified manufacturing laboratory and repair facility. The company produces a focused portfolio of primary flight and engine instruments for the general aviation industry, including altimeters (5934, 5035, and the patented 5506 Series servoed encoding altimeter), airspeed indicators (8000 and 8100 Series), manifold and fuel pressure instruments (6100 Series), cabin altitude and differential pressure indicators (3000 and 3300 Series), and vertical speed indicators (7000 and 7100 Series). Its flagship 5506 Series features a patented mechanism that maintains accuracy under 25 feet across the calibrated range and is approved for integration with the Collins Autopilot System APS-65.

The company's revenue model combines three streams: hardware sales to general aviation OEMs and through authorized distributors, FAA-approved repair and overhaul services at its Wichita facility, and one-time sales of maintenance and overhaul manuals priced at $80–$250. United Instruments goes to market through direct OEM sales (engagement via [email protected] and 316-636-9203) for new design requirements and through an authorized distributor network spanning Texas, California, Kansas, and Georgia in the US, with international reach via Tokyo Aircraft Instrument Co., Ltd. in Japan and a recommended repair station in Germany. The company holds ISO 9001:2015 and AS9100D certification (Certificate No. 261639, valid through November 16, 2028), FAA Repair Station designation No. PT2R095L, and EASA Repair Station designation No. 145.4982.

United Instruments is a wholly-owned subsidiary of Tokyo Aircraft Instrument Co., Ltd. (TKK), a Japanese leader in military and commercial aircraft instrumentation and avionics, which provides corporate backing and the cross-promoted TKK Motion Sensor Unit. The company does not disclose revenue, headcount, or external funding and operates as a stable, mature niche manufacturer within its parent company's broader aerospace portfolio.

Name

United Instruments

Legal name

United Instruments, Inc.

Website

https://unitedinst.com

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

11–50 employees

Short description

United Instruments, founded 1967 in Wichita, Kansas, manufactures FAA/EASA-certified precision aircraft instruments — altimeters, airspeed, manifold/fuel pressure, cabin altitude, and vertical speed indicators — for general aviation OEMs and a US/Japan authorized distributor network.

Ownership category

akta.pro rank

Product category

Aircraft Instruments

NAICS

Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413), Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing (334511), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Aircraft Parts & Auxiliary Equipment, Nec (3728), Industrial Instruments For Measurement, Display, And Control (3823), Search, Detection, Navagation, Guidance, Aeronautical Sys (3812)

akta.pro primary industry

Avionics & Electronics Repair (Bench Repair) (IMABALAE)

akta.pro secondary industry

Parts Distribution & Spares Management (Aftermarket) (IMABALAK)

Keywords

• Aircraft instruments
• Flight instruments
• Altimeters
• Airspeed indicators
• Vertical speed indicators

Headquarters

HQ city

Wichita

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Aircraft Instrument Sales: Sale of primary flight and engine instruments including altimeters, airspeed indicators, manifold pressure gauges, cabin altitude indicators, and vertical speed indicators to general aviation manufacturers and through distributor network.
2. Instrument Repair Services: FAA-approved repair facility accepting both warranty and non-warranty instrument repair. The company provides repair, overhaul, and warranty services on their instruments.
3. Maintenance Manual Sales: Sale of maintenance manuals, overhaul manuals, spec sheets, outline drawings and applicable supplements for general aviation instruments at various price points ($80-$250 per manual).

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

United Instruments manufactures and sells primary flight and engine instruments for the general aviation industry, including altimeters, airspeed indicators, manifold and fuel pressure gauges, cabin altitude and differential pressure indicators, and vertical speed indicators. The company also provides FAA/EASA-approved repair, overhaul, and warranty services on these instruments from its certified 16,000 sq. ft. facility in Wichita, Kansas, and sells maintenance manuals to support ongoing aircraft operations.

Product overview

United Instruments is an aircraft instrument manufacturer operating since 1967, specializing in primary flight and engine pressure/flow instruments for the general aviation industry. The company offers a comprehensive product portfolio comprising: Altimeters (5934 Series Sensitive Pressure Altimeter, 5035 Series Encoding Altimeter, and 5506 Series Servoed Encoding Altimeter with Collins APS-65 compatibility); Airspeed Instruments (8000 Series Airspeed Indicator and 8100 Series True Airspeed Indicator); Manifold & Fuel Pressure Instruments (6100 Series Manifold Pressure Indicator); Cabin Atmosphere Instruments (3000 Series Cabin Altitude Differential Pressure Indicator and 3300 Series triple-function cabin indicator); and Vertical Speed Instruments (7000 Series Vertical Speed Indicator and 7100 Series Instantaneous Vertical Speed Indicator). The instruments are manufactured in a 16,000 sq. ft. FAA/EASA certified facility in Wichita, Kansas.

Differentiator

Problem solved

Functional benefit

Products and services

• 5934 Series Sensitive Pressure Altimeter Sensitive Pressure Altimeter designed for general aviation aircraft to help pilots determine altitude (height above mean sea level) by measuring atmospheric pressure and translating it into feet readings on the dial.
• 5035 Series Encoding Altimeter Encoding Altimeter that determines altitude and provides encoded altitude data for transponder systems, helping pilots identify altitude above mean sea level.
• 5506 Series Servoed Encoding Altimeter Patented servoed encoding altimeter emphasizing accuracy and reliability, approved for and fully compatible with the Collins Autopilot System APS-65. Maintains accuracy of less than 25 feet in the entire calibrated range when used with the 5506L series Altitude Alerter.
• 8000 Series Airspeed Indicator Airspeed Indicator that measures differential pressure between pitot and static openings to indicate aircraft speed relative to air at sea level altitude, displaying equivalent speed corresponding to actual air force.
• 8100 Series True Airspeed Indicator True Airspeed Indicator providing aircraft speed relative to air at sea level or desired altitude, using an inner dial that converts altitude and temperature into true airspeed readings via a setting knob.
• 6100 Series Manifold Pressure Indicator Manifold Pressure Indicator that displays absolute pressure of the aircraft engine intake manifold in Inches of Mercury Absolute.
• 3000 Series Cabin Altitude Differential Pressure Indicator Dual-function unit displaying cabin pressure in feet of altitude on the outer scale and differential pressure between inside and outside of the cabin in PSI on the inner scale.
• 3300 Series Cabin Altitude Indicator Triple-function indicator displaying cabin altitude in feet, cabin differential pressure in PSI, and rate of climb in feet per minute.
• 7000 Series Vertical Speed Indicator Precision instrument providing accurate indication of rate of change of altitude, with ascent shown by clockwise pointer rotation from zero and descent by counter-clockwise rotation.
• 7100 Series Instantaneous Vertical Speed Indicator Precision instrument providing accurate and reliable indication of rate of change of altitude with instantaneous response to altitude changes.
• Instrument Repair and Overhaul Services FAA-approved repair, overhaul, and warranty services for United Instruments products, accepted at both warranty and non-warranty levels. Recommended service stations include TGH Aviation, Pacific Southwest Instruments, Mid-Continent Instruments & Avionics, Avionik Straubing (Germany), Precision Accessories & Instruments, and Castleberry Instrument & Avionics.
• Maintenance and Overhaul Manuals Maintenance manuals, overhaul manuals, spec sheets, outline drawings, and applicable supplements for United Instruments general aviation products, priced from $80 (4013, 6511 manuals) to $250 (3311A, 34-17-03, TM-5035, TM-5934, TM-5500EA manuals), with prices including domestic shipping.

Quantifiable outcome

• Accuracy maintained at less than 25 feet in entire calibrated range for 5506 Series with 5506L Altitude Alerter

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature1 record

Partnerships

One partnership is on record.

• Tokyo Aircraft Instrument Co., Ltd. (TKK)coreStrategic or Co-development PartnerUnited Instruments is a subsidiary of Tokyo Aircraft Instrument Co., Ltd. (TKK), a global leader in military and commercial aircraft instrumentation and avionics manufacturing. TKK provides corporate backing and strategic direction to United Instruments.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Market position

Strengths4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about United Instruments