Office: 858-384-6569
Free Ground Shipping on Online Orders Over $150
Atendemos Tambien en Español



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
Learn More

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
Learn More

Honeywell Thermal Solutions

Manufacturer of Industrial Burners, and Combustion Controls.

  • Burner & Flame Safeguard Controls
  • Eclipse Burners
  • Maxon Burner and Gas Valves
  • Kromschroder Combustion Controls
Learn More

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
Learn More


Is the global market leader in the development, production, and sales of field devices for controlling HVAC systems.

  • Control Valves
  • Damper Actuators
  • Fire & Smoke Actuators
  • Economizers
  • Energy Valves
Learn More


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
Learn More


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
Learn More

Nor'East Controls

Nor'East Controls' highly respected line of globe valves and controls—manufactured first by Honeywell and then by DeZurik has been a favorite for multiple applications since the 1950’s.

  • Pneumatic Actuators
  • Globe Valves
  • Cage Guide Valves
Learn More

Bray Commercial

Bray Commercial provides automated butterfly valves, ball valves, and pressure independent valves to the commercial HVAC market.

Learn More


Leading manufacturer of flame safeguard controls and burner management systems for commercial and industrial applications throughout the world.

  • Burner controls & Flame safeguard
  • Integrated discrete flame scanners
  • Boiler efficiency system
  • Igniters
Learn More

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
Learn More

GC Valves

GC Valves 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
Learn More

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
Learn More

Vortek Instruments

Established in 1995, VorTek Instruments is a leading manufacturer of precision multivariable flowmeters for the measurement of liquid, gas, steam, and energy. Leveraging technology innovations, we strive to offer our customers reliable and economical flow metering solutions.

Learn More

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
Learn More

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
Learn More


U.S Manufactured temperature sensors, components and complete assemblies.

  • RTDs
  • Thermocouples
  • Thermowells
  • Connection heads
  • Temperature transmitters
Learn More


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
Learn More


Automation Components Inc. (ACI) is a manufacturer & distributor of sensors for the HVAC Industry.

HVAC Sensor for:

  • Temperature
  • Pressure
  • Humidity
  • Current
  • Gas
Learn More


Trerice as a worldwide leader in the manufacture and supply of temperature and pressure measurement and controls.

  • Pressure Gauges
  • Self-contained Temperature Regulators
  • Steam Control valves
Learn More

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
Learn More


Designs and manufactures custom-made electric heating products and control systems for diverse industrial process heaters applications.

  • Immersion heaters
  • Duct heater
  • Tubular Heater
  • Cartridge heater
  • Flexible heater
Learn More


Epiphene develops Filtration & Solids Removal Solutions for a wide range of sectors including Irrigation, HVAC and Industrial applications.

Learn More


Designed and manufactured in the United States, DualDraw downdraft tables, downdraft booths, and other specialized air filtration equipment are used across the globe to protect operators, and eliminate cross contamination.

  • Air Filtration System
  • DownDraft Tables
  • DownDraft Booths
  • Walk-in Clean station Units
  • Wet Dust Collectors
Learn More

United Process Controls

UPC offers Solutions that significantly lower fuel consumption, maintenance costs and emissions. UPC products are used in high temperature environments such as furnaces, boilers, incinerators, power plants, fired heaters, kilns, etc. .

Learn More


Manufacturer of a variety of flow metering and submersible sensor products. Seametrics provides innovative solutions to users in irrigation, fracking, water & wastewater, environmental, and industrial applications

Vega Instruments

Global manufacturer of sensors for measuring level, point level, pressure as well as devices and software for integrating them into process control systems.

MPI Melt Pressure

MPI Melt Pressure are experts in plastic melt pressure products, providing the tools you need to accurately control the pressure and temperature in your manufacturing process.


REOTEMP is a globally recognized ISO 9001-2008 manufacturer of temperature and pressure instrumentation.

  • Pressure Gauges
  • Diaphragm Seals


Kunkle Valve industrial and commercial safety and relief valves are made for steam, air, gas, liquid, cryogenic, and nonhazardous gas applications.

LS Electric

Electric Power, Automation & Drive Solutions


Manufacturer of gas regulators and control valves for the residential, commercial, and industrial market.

McDonnell & Miller

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

  • Low Water Cutoff
  • Flow Switches

Endress + Hauser

Industrial process measurement and automation.

  • Flow Transmitters
  • Pressure Transmitters
  • Level Transmitters
  • Temperature Transmitters
  • Analytics


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


Watlow designs and manufactures industrial heaters, temperature sensors, controllers - all of the components of a electric thermal system.

Spirax Sarco

Manufactures product for every part of your steam system.

  • Steam Traps
  • Steam Regulators
  • Safety Valves


Manufacturer of high quality Pressure gauges, switches, transducers & transmitters.

Saginaw Controls

Saginaw Controls specializes in manufacturing both standard stock and custom designed enclosures as well as precision sheet metal fabrications.


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.

Shopping cart


No products in the cart.

Continue Shopping