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Climate Control

We offer a complete line of climate controllers specifically designed for greenhouse, grow room and hydroponic applications. These dependable devices put you in charge of all the conditions critical to a superior growing environment. Depending on the type of controller you choose, you can: Read More

• monitor temperature and humidity
• operate fans, evaporative coolers, air conditioners and heaters
• run humidifiers and dehumidifiers
• coordinate ventilation with CO2 enrichment devices

From the best greenhouse controller that reads and adjusts all environmental conditions to simple temperature controllers, our wide selection guarantees you’ll find the right equipment to meet your needs and budget.

  • Greenhouse Master Controller

    Greenhouse (GMC)

    The best device for automating temperature, CO2 and humidity.

    $604.95 $549.95
  • Fuzzy Logic CO2 Controller (PPM-2a)

    CO2 Controller (PPM-2a)

    What sets the PPM-2a miles ahead of the competition? FUZZY LOGIC!

    $534.95 $489.95
  • Temperature Controller (TMP-1)

    Cooling/ Heating (TMP-1)

    Allows you to precisely maintain temperatures within your growing space.

    $69.95 $64.95
  • CO2 & Temperature Controller (AIR-3DN)

    Day/ Night Temp & CO2 (AIR-3DN)

    Integrates separate day and night temperature settings and supplemental CO2.

    $216.95 $197.95
  • Cooling Thermostat

    Day/ Night Thermostat

    Automates heating and cooling equipment with both day and night set-points.

    $69.95 $64.95
  • Portable Dehumidifier


    Removes up to 5.4 gallons of water per day and can be used with a timer or other device.

    $274.95 $249.95
  • Portable Air Conditioner

    Digital A/C Unit

    An excellent choice for small-space gardens that need temps between 62 and 95˚F.

    $499.95 $474.95
  • Plug-In Thermostat


    This plug-in thermostat will turn equipment ON or OFF when temperatures change.

    $39.95 $35.95
  • Environmental Controller

    Environmental (DEC)

    Use to manage CO2, temperature and humidity with digital precision.

    $229.95 $209.95
  • Fan Speed Adjuster

    Fan Adjuster

    Works with ALL brushless motors and can help reduce excessive noise.

    $27.95 $22.95
  • Day-Night Fan Speed Controller (VSC-DNe)

    Fan Speed (VSC-DNe)

    Designed to gradually increase or decrease the speed of your exhaust equipment.

    $109.95 $99.95
  • High Temperature Shutdown

    High Temp Shutdown (HLC)

    Use to automatically shut fixtures off and protect your crop from overheating.

    $89.95 $81.95
  • Humidity Controller (HUM-1)

    Humidity (HUM-1)

    Works to increase or decrease the humidity level around your favorite plants.

    $121.95 $109.95
  • IPonic 614 Controller

    iPonic 614

    Allows you to monitor your entire grow room via smart phone or computer.

    $1,399.00 $1,059.95
  • Split Air Conditioner

    Split A/C

    Installing these Mini-Split AC units is easy with the NEW quick-connect system.

    $1,119.95 $999.95
  • Temperature & Humidity Controller (AIR-1)

    Temp/ Humidity (AIR-1)

    Easy to use, just set temp and humidity to the level that you wish to maintain.

    $154.95 $89.95
  • Temperature & Humidity Controller (AIR-2)

    Temp/ Humidity (AIR-2)

    Includes the same features as the AIR-1, but with separate temp and humidity outlets.

    $154.95 $139.95
  • CO2 & Atmospheric Controller (AIR-3)

    Temp/ Humidity & CO2 (AIR-3)

    Use to safely coordinate supplemental CO2 with your ventilation equipment.

    $216.95 $195.95
  • Temperature-Humidity & CO2 Controller

    Temp/ Humidity & CO2 (AIR-4 )

    The AIR-4 will monitor temperature, humidity and CO2 independently.

    $224.95 $204.95
  • Day-Night Temperature Controller

    Temperature (TMP-DNe)

    An extremely reliable device for maintaining different day and night temperatures.

    $86.95 $79.95