Unlimited Controls and our partner manufacturers provide the controls and instrumentation solutions that make us a leader in our industry.


VRF Refrigerant Leak
Detection Solutions for
Occupied Confined Space.


  • Hotel Rooms
  • Dorms
  • Senior Care
  • Hospitals
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Schneider Electric

Develops connected technologies and solutions to manage energy and process in ways that are safe, reliable, efficient and sustainable.

  • Smart Thermostats
  • Controls Valves & Actuators
  • VFDs & Soft Starts
  • Power Meters
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Honeywell HTS

Manufacturer of Commercial & Industrial Combustion Controls, and HVAC Controls.

  • Burner & Flame Safeguard Controls
  • Controls Valves & Actuators
  • Variable Speed Valves
  • Damper, Fire & Smoke Actuators
  • Pneumatic valves and actuators
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Siemens / SCC Inc.

The Siemens Building and Combustion Technologies is a leader for safe and secure, energy-efficient and environment-friendly buildings.

  • Burner Controls and Safety shutoff valves
  • Pneumatic Valves & Actuators
  • Variable Speed Drives
  • Damper actuators
  • Power Meters
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Automation Components Inc. (ACI) is a manufacturer & distributor of sensors for the Heating, Ventilation and Air Conditioning (HVAC) Industry.

HVAC Sensor for:

  • Temperature
  • Pressure
  • Humidity
  • Current
  • Gas
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Alco Valve Group

Manufactures and distributes a whole range of instrumentation valves, Alco Hi-Tek specializing in the DBB market, Alco Sub-Tek supplying to the sub sea industry, and Alco Process Valves supplying gate, globe, check and ball valves to service the process industry.

  • 3-Way Manfold Valves
  • Needle Valves
  • Twin block Valves
  • Gate valves Forged Steel
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Manufacturer of high quality Pressure gauges, switches, transducers & transmitters, diaphragm seals, thermowells & accessories, test instruments.

  • Pressure Gauges
  • Pressure Switches
  • Pressure Transmitters/li>
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Armstrong Fluid

Core competencies in fluid flow, variable speed, demand-based control, and heat transfer we are uniquely positioned to combine high-quality hardware, controls intelligence, and related services into fully integrated building energy solutions.

  • Boosters
  • Commercial Pumps
  • Sump & Sewage
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Is the global market leader in the development, production, and sales of field devices for controlling heating, ventilation and air conditioning systems.

  • Control Valves
  • Damper Actuators
  • Fire & Smoke Actuators
  • Economizers
  • Energy Valves
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Bell & Gossett

World Leader in the manufacturing of Boiler feed & Condensate packages, hydronic pumps & circulators, packaged pumping systems, steam specialties, HVAC flow control, air separation, heat exchangers & expansion tanks.

  • Pumps & Circulators
  • Boiler feed & condensate pumping packages
  • Expansion Tanks
  • Heat Exchangers
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With manufacturing facilities in the USA and Ireland, Bacharach, Inc. is a world leader in the design, manufacture, and service of advanced equipment for the measurement and detection of gases and liquids.

  • Fixed Gas Detectors
  • Combustion Analyzers
  • Gas Monitors
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Is a leader manufacturer of Process Control Valves for the industrial sector of hydraulics and heating, specialized in the production of components for the regulation and interception of fluids and gases.

  • Ball & Butterfly Valves
  • Electric & Pneumatic Actuators
  • Cryogenic Valves
  • Check Valves
  • Cage valves
  • Valve Positioner
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Crown Engineering

One of the leading manufacturers of electrodes, flame rods, probes and terminal connectors for ignition related heating applications for oil and gas fired equipment.

  • Ignitors
  • Flame Rods
  • Probes
  • Terminal Connectors
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Designed, manufactured, and assembled in the United States, DualDraw downdraft tables, downdraft booths, and other specialized air filtration equipment are used across the globe to protect operators, eliminate cross contamination, and serve other various safety and air quality needs.

  • Air Filtration System
  • DownDraft Tables
  • DownDraft Booths
  • Walk-in Clean station Units
  • Wet Dust Collectors
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Endress + Hauser

Leading supplier of products, solutions and services for industrial process measurement and automation. E+H offers comprehensive process solutions for flow, level, pressure, analysis, temperature, recording and digital communications across a wide range of industries, optimizing processes with regards to economic efficiency, safety and environmental protection.

  • Flow Transmitters
  • Pressure Transmitters
  • Level Transmitters
  • Temperature Transmitters
  • Analytics
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As part of the Schneider Electric business, Eurotherm is a leading global supplier of Industrial Automation and process control, measurement and data management solutions and services.

  • PID Process Controllers
  • Process Indicators
  • Digital Data Recorders
  • Actuatos
  • Power Controllers
  • PLC & HMIs
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Eagle Controls

Supply one of the most comprehensive ranges of Large Digital LED Displays available, with an estimate of over 900 bespoke and standard Displays.

  • Production LED Displays
  • Counters & Totalizer Displays
  • Temperature Displays
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Leading manufacturer of flame safeguard controls and burner management systems for commercial and industrial applications throughout the world. Their products can be found in a variety of public buildings, commercial properties, power plants, pulp and paper mills, petrochemical facilities and food processing plants.

  • Burner controls & Flame safeguard
  • Integrated discrete flame scanners
  • Boiler efficiency system
  • Igniters
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GC Valves

GC Valves – in partnership with Components For Automation – designs and manufactures world class solenoid valves to meet the rigors of today’s most demanding application.

  • Direct Acting Solenoid Valves
  • Piloted Diaphragm
  • Zero Differential Piloted Diaphragm
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Hauck (A Honeywell Company) supplies combustion solutions to the asphalt and fracking industries with a complete line of burners and integrated combustion solutions making combustion processes more efficient and reducing fuel costs.

  • Gas Burners
  • Oil only burners
  • Blowers
  • Pilots & Ignition components
  • Oil pumping & heating units
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Honeywell Analytics

Gas detection from standalone units to fully engineered, multi-point systems, all offering cost-effective regulatory compliance for commercial and industrial application.

  • Gas Monitoring Systems
  • Gas Sensors
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Honeywell Eclipse offers a comprehensive range burners, recuperators, heat exchangers, and fully engineered combustion systems for industrial heating processes that deliver safe, reliable, efficient, and clean heat.

  • Industrial Burners
  • Exothermic Heat Exchangers
  • Low nox Burners
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Honeywell Maxon provides burner solutions and engineered combustion systems for industrial process heating applications including gas and oil burners and valves, hazardous area shut off valves, and low and Ultra low NOx burners.

  • Gas Burners
  • Safety Shutoff Valves
  • Gas/Air Control Vavles
  • Combustion Controls Systems
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Honeywell Kromschröder manufactures gas combustion and controls for heating and process applications from filters and regulators, to safety shut-off and control valves, to the burner management system.

  • Gas Safety shut-off valves
  • Gas Control Valves
  • Electronic actuators
  • Flame supervision controls
  • Gas Regulators
  • Gas burners & Pilots
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Kunkle Valve industrial and commercial safety and relief valves are made for steam, air, gas, liquid, cryogenic, and nonhazardous gas applications. Code and non-code versions are set, tested, and certified to customer specifications and sealed according to ASME specifications.

  • Safety relief valves
  • GAS Regulators
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LS Electric

Electric Power, Automation & Drive Solutions

  • VFDs
  • Molded Case Circuit Breakers
  • Motor Contactors
  • Motor Starters
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Manufacturer of gas regulators and control valves for the residential, commercial, and industrial market. Maxitrol’s design team continues to create and produce inventive products including the 325 series regulators for use with 2 psi and 5 psi piping systems, the Selectra electronic gas flame modulation systems for direct and indirect fired heaters.

  • Gas Regulators
  • Modulating Valves
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Midco International

Midco is the world's leading manufacturer of power burners. We create durable, top-of-the-line products for a wide range of residential, commercial, and industrial applications.

  • Gas Fired Burner
  • Commercial & Industrial burners
  • Process Burners
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McDonnell & Miller

Premier Manufacturer of Boiler Controls, flow switches, liquid level controls, valves & water feeders for commercial & process applications.

  • Low Water Cutoff
  • Flow Switches
  • Water Feeders
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Watlow designs and manufactures industrial heaters, temperature sensors, controllers and supporting software as well as assemblies – all of the components of a electric thermal system.

  • Electric Heaters
  • Temperature Sensors
  • PID Controllers
  • SCR's
  • Multi-Zones Controllers
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Precision Digital

Established in 1974, Precision Digital Corporation is a manufacturer of a comprehensive line of digital display and control instrumentation . PDC’s products are used mostly in flow, level, pressure, and temperature applications and are packaged for panel, field, and surface mounting.

  • PID Process Controllers
  • Digital Panel Meters
  • Batch Controller
  • Field Mounted indicators
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U.S Manufactured temperature sensors, components and complete assemblies.

  • RTDs
  • Thermocouples
  • Thermowells
  • Connection heads
  • Temperature transmitters
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REOTEMP is a globally recognized ISO 9001-2008 manufacturer of temperature and pressure instrumentation. REOTEMP sells through a mature distribution network that reaches all 50 states and 30 countries worldwide.

  • Pressure Transmitters
  • Pressure Gauges
  • Temperature Sensors
  • Bi-metal Thermometers
  • Diaphragm Seals
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Founded in 1988 with the mission to becoming an international reference point for gas detection. Today, thanks to the development of sensors that have been continually more reliable, the systematic use of microprocessor technology, meeting European standards and the quality procedures adopted, Sensitron is ranked among the European market leaders.

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Founded in 1967, Setra Systems, Inc. is a leading designer and manufacturer of pressure, acceleration, and weight sensing devices.
HVAC and Industrial Sensors:

  • Pressure
  • Temperature
  • Air Flow
  • Current
  • Gas
  • Weighing systems
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Saginaw Controls

Serving the electrical industry since 1963. Saginaw Controls specializes in manufacturing both standard stock and custom designed enclosures as well as precision sheet metal fabrications.

  • Metal Enclosures
  • Enclosure Thermal Management Solutions
  • Port Programming Modules
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Spirax Sarco

Manufactures product for every part of your steam system. So you can source your steam system products from us and benefit from seamless integration, readily available spares and straightforward servicing.

  • Steam Traps
  • Steam Regulators
  • Boiler water controls
  • Safety Valves
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TESTO, INC. is a world leader in the design, development and manufacture of portable test and measurement instrumentation.

  • Portable Combustion Analyzer
  • Data Loggers
  • Temperature Sensors
  • Thermography Instruments
  • Clean Room Instruments
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United Process Controls

UPC offers Solutions that significantly lower fuel consumption, maintenance costs and emissions. Their products are used in high temperature environments such as furnaces, boilers, incinerators, power plants, fired heaters, kilns, etc. These simple engineered solutions are composed of a reference air box, a Oxymit transmitter or Protherm controller, and an Oxyfire Oxygen Sensor.

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Viconics is a manufacturer of Communicating and Non-communicating HVAC Temperature Controllers and Digital Thermostats targeted to the HVAC industry.

  • Room Temperature Controllers
  • Wireless Gateways
  • Sensor
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Watlow designs and manufactures industrial heaters, temperature sensors, controllers and supporting software as well as assemblies – all of the components of a electric thermal system.

  • Electric Heaters
  • Temperature Sensors
  • PID Controllers
  • SCR's
  • Multi-Zones Controllers
Learn More


Watts designs, manufactures and sells an extensive line of flow control products for the water quality, residential plumbing & heating, commercial and OEM markets.

  • Water safety & flow controls
  • Water filtration systems
  • Pressure Regulator
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Warren Controls

Manufactures Control Valves for industrial and commercial application.

  • Electronic Actuator
  • Pneumatic Actuators
  • Globe ValvesValves
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