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Founded in San Diego, California in 1988, TAPI introduced a complete line of Air Quality Monitoring (AQM) instrumentation, which complied with the Environmental Protection Administration (EPA) requirements for the measurement of criteria gases consisting of CO, SO2, NOx and Ozone.

Since that time, TAPI has introduced many features to these products and has grown to the position of the leading producer of AQM instrumentation, providing state of the art analytical products on a world wide basis. Our instruments comply with US EPA regulations as well as a number of other international requirements.

TAPI has a large customer list containing both environmental agencies and consultants. Of the four largest automated AQM networks in the world, TAPI instruments can be found in three. TAPI is the product of choice in Mexico City, Malaysia, Thailand, the United Kingdom not to mention many networks in the USA. TAPI instrumentation can be found in over fifty countries and every state in the US. With vast experience in AQM instrumentation, TAPI continues to expand its world market share in the growing environmental markets of China, the Indian sub-continent, and Africa.

In October, 2001, the original company -- Advanced Pollution Instrumentation (API) -- merged with Teledyne Instruments to form Teledyne Advanced Pollution Instrumentation, Inc. The merger with Teledyne presented a quantum leap for TAPI in the areas of R & D, distribution and manufacturing capabilities. The complete dedication to customer needs, superior products, and expanded capabilities all serve to insure that TAPI will continue its rapid expansion for the foreseeable future.

Teledyne API quality policy

TAPI's quality policy represents their primary objective for business success . TAPI recognised that quality was the result of conscientious dedication by every member of their organisation. That dedication begins with the visualization of a product and extends through its material selection, processing, handling, and delivery to the customer.

This policy shall be achieved by the implementation and maintenance of a documented Quality System. This Quality System shall satisfy the requirements of ISO 9001 in addition to TAPI's inherent commitment to defining, measuring, and managing quality.

Teledyne API areas of expertise

The Teledyne API range of equipment can be found in a wide range of application areas, such as:

  • Complete Air Quality Monitoring (AQM) systems

  • Ozone monitors for industrial use, in ranges from parts per billion to percent levels

  • Stack Gas / Continuous emissions monitors

  • Process, safety and clean-room monitors

  • Gas purity monitoring for gas manufacturing and bottling

Range of ambient air quality analysers

Air quality monitoring analysers

Sulphur dioxide (SO2)

Hydrogen sulphide (H2S)

Chlorine (Cl2)

Total Reactive Oxides of Nitrogen (NOy)

Carbon monoxide (CO)

Carbon dioxide (CO2)

Total reduced sulphur (TRS)

Ammonia (NH3)

Ozone (O3)

Nitrogen oxide / dioxide(NO, NO2, NOx)

Range of calibration equipment


Calibration equipment

Mass flow controller Zero air generator Ozone calibrator
High performance zero air system Precision calibrator

We focus mainly on TAPI's range of ambient air quality and calibration equipment. You can view their entire application matrix by clicking here. Should you have an application for any of the other equipment listed on the application matrix, we would be glad to provide you with a quote.

Are there any international approvals for the TAPI range of equipment?

The short answer is YES. All TAPI gas analysers carry USEPA, MCERTS and European EN approvals.