Instruments and Controls

• Airflow Direction Incorporated  - Room pressure indicators and alarms for monitoring the direction of airflow into or out of a room. Used in hospitals, labs, prisons, animal facilities, cleanrooms.
• ALPS Controls  - Provides control products for HVAC and building automation systems.
• Amcon Controls  - Designs HVAC control systems and distributes HVAC control products including HVAC temperature sensors, relative humidity sensors, differential pressure transmitters, flow transducers and direct digital control systems.
• Apex Controls  - Offering valves, thermostats, electric motors, pumps, actuators, coils, transmitters, sensors.
• Argo Technology, Inc.  - Offers a line of switching relays, zone controls and multiple boiler system controls as well as 100% efficient electric boilers.
• ASI Controls  - Manufactures direct digital controls for the heating, ventilating, and air conditioning and light industrial marketplace.
• Boston Aircontrols  - A stocking distributor of HVAC controls for commercial and industrial buildings.
• Braeburn Systems LLC  - Provides digital electronic and electro-mechanical thermostats, controls and related accessories for installation by professional contractors.
• Circon Systems Corporation  - Provides modular, technically advanced, flexible control products that fully integrate access control, heating, ventilation, air conditioning, energy management, and other major building functions.
• Comag IR Technology Inc.  - Manufactures infrared sensors, gas detectors, analyzers and dataloggers.
• Control Depot  - Distributor of industrial, commercial, and residential control systems and control system accessories.
• Control Products, Inc.  - Specializes in control technology, control design and electronic manufacturing services for the commercial/industrial equipment market.
• Georgia Controls  - Designs and manufactures electronic products in the USA for the HVAC industry, targeted at single and multi-stage geothermal heat pumps and their unique requirements.
• HVAC Control Technology, LLC  - Offering system integration, building management systems, DDC control systems, commissioning services.
• HVAC Plus  - Reseller of commercial replacement parts for heating, ventilation, and air conditioning equipment.
• IEE Interstate HVAC Controls  - Specializes in combustion controls, building automation, and HVAC systems.
• Industrial Controls  - Supplier of HVAC controls, process controls and industrial valves.
• Innovative Waters, LLC  - Manufactures flow switches, water conductivity sensors, manifolds, meters, and 24-hour alarm monitoring systems.
• Intermatic, Inc.  - Manufacturer of consumer and industrial energy control products, major product lines are consumer timers, Malibu low voltage outdoor lighting, industrial grade timers, photo controls.
• Sensor Scientific Inc.  - Manufactures a complete line of thermistors, RTDs, and custom sensor assemblies.
• Servi-Tech Controls, Inc.  - Specializing in energy management systems, building automation.
• Standard Plumbing and Heating Co.  - Installs individual zone controls on central systems and interfaced controls.
• Temco controls Ltd.  - Manufactures HVAC controls and a range of HVAC sensors, relays, valves and thermostats.