About Us

Building Automation Products, Inc. (BAPI) is a premier sensor manufacturer for HVAC/R. Specialising in sensors for temperature, humidity, pressure, wireless and air quality monitoring as well as test instruments.

BAPI's US Headquarters

BAPI’s US Headquarters

A History of Business Success

Over the past 25 years BAPI has forged a place in the HVAC/R industry, with their area of expertise focused on advanced sensor technology for HVAC & R applications. Originating in Cross Plains, WI in 1993, BAPI’s first facility was literally conducted out of a small two-car garage. Today, BAPI serves customers around the globe from their 4,500 sq meter facility based in rural southwestern Wisconsin. BAPI continues the “it’s in the details” tradition, using the highest quality sensing elements paired with state of the art manufacturing, meticulous testing and quality assurance procedures to ensure a reliable product time after time.


UK Office and Warehouse

UK Office and Warehouse

BAPI UK has moved!

To keep up with demand we have recently opened a European Distribution Centre in the UK and a sales office in Germany. We would like to thank our partners for their continued support and look forward to many more years providing advanced sensor technology for the HVAC/R industry.

In our new facility we can offer more stock, more services and more sensors. Call one of our specialists for more information 01252 544410.

You can now find us at:
Building Automation Products Inc. UK LTD
Unit 7, Alpha Centre
North Lane
Hampshire, GU12 4RG
United Kingdom

Plus, you can always find us at: www.bapihvac.co.uk
or email us at: [email protected].


The BAPI Difference

In addition to our exceptional people, BAPI uses only the highest quality sensing elements and meticulous manufacturing, testing and quality assurance procedures. Here are a few of the extra steps that we take to make sure that our products set the standard for accuracy and reliability.

  • 100% Testing at Every Step – Each and every BAPI product is tested at multiple stages in the manufacturing process using custom designed fixtures and computer aided procedures.
  • NIST Traceable Precision Instruments – Product testing and calibration is conducted with precision Instrumentation and state-of-the-art Environmental Chambers, all of which are traceable to National Institute of Standards and Technology (NIST) standards.
  • Computer Aided Production Stations – Every production station features a large computer monitor and access to a wealth of resources on the BAPI network including product specific build documents, schematics and 3-D renderings to assure that each product is built to our engineering specs.
  • CE Certified & RoHS Compliant – BAPI holds itself to a higher standard with CE certification on select models of temperature, humidity and pressure sensors. BAPI is also committed to environmentally responsible manufacturing practices and complies with the European Union’s RoHS directive.