DELTA, BC, May 21 /PRNewswire-FirstCall/ - AirTest Technologies (TSXV: AAT) announced today that it has received a $90,000 order for carbon dioxide (CO(2)) sensor products to be integrated into the products offered by WattMaster Controls Inc., a Kansas City based manufacturer of controls used by building contractors and major HVAC equipment manufacturers. This is the initial order, however WattMaster has confirmed that going forward, they will be including the AirTest CO2 sensor as a standard component in one of their regular production control systems.

The CO(2) sensors WattMaster has ordered are compact sensor modules designed to be easily integrated into Original Equipment Manufacturer ("OEM") electronic products. The sensor is very low profile and can easily be designed into most wall-mount enclosures typically used for sensing temperature or other indoor environmental parameters. The sensor is self-calibrating and requires no maintenance over its 15 year rated life. According to Mike Hobbs, President of WattMaster, "We decided to work with AirTest because of the depth of their product and application knowledge, plus the fact that they offered the best product for our application that requires us to control building ventilation based on CO(2) levels."

AirTest's self-calibrating CO(2) sensors save energy in buildings by regulating outside air ventilation based on the actual number of people in a space. This ensures that only enough outside air is heated or cooled to meet the immediate needs of occupants. Much of the demand for this type of sensor is driven by the growing interest in making buildings energy efficient, an important part in creating green and sustainable buildings. For example the LEED building certification program operated by the US Green Building Council provides certification points for including CO(2) measurement and control to ensure good indoor environmental quality while at the same time saving energy. CO(2) ventilation control can represent a simple but highly effective way for almost all buildings to reduce energy use while ensuring good indoor air quality for occupants.

In addition to its own product line of sensors for building control, AirTest offers a wide range of OEM sensor technologies targeted for the use of independent controls and equipment manufacturers who need to integrate AirTest's sensor technologies into their products.

About AirTest: AirTest Technologies (www.airtesttechnologies.com) is a Green-Tech company specializing in sensors that improve commercial building operating efficiency and at the same time create energy savings. These sensors are all based on technical innovations developed in the last ten years, and comprise a growing second wave of energy saving technologies that will make a significant contribution to the Sustainable Buildings Program. AirTest offers its products to leading-edge building owners, contractors and energy service companies targeting the buildings market. AirTest also provides energy cost reduction solutions to building equipment and controls manufacturers who incorporate AirTest sensor components in their products.

About WattMaster Controls Inc.

WattMaster Controls Inc. is a privately held company based in Kansas City, MO that designs and produces building energy management and control systems. A large part of their business is also related to the development and manufacture of unique control products for major manufacturers of heating, cooling and industrial automation equipment.

Statements about the Company's future expectations and all other statements in this press release other than historical facts are "forward looking statements". The Company intends that such forward-looking statements be subject to the safe harbours created thereby. Since these statements involve risks and uncertainties and are subject to change at any time, the Company's actual results may differ materially from the expected results.

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