Environmental Controls

Got questions about climate control and CO2? Check out GYO's guide to Climate Control for your grow room.

Need help finding the best equipment for your garden? Call the grow pro's at (617) 945-1654. We're here to help.

1 - 88 of 88 items
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Growlink Nest Outdoor Camera Growlink Nutrient System Controller / Doser Growlink Remote Dosing Pump
Growlink Nest Outdoor CameraGrowlink Nutrient System Controller / DoserGrowlink Remote Dosing Pump

Monitor your grow remotely and create a time-lapse movie of your plants as they grow and bloom. Capture plants health, growth rate and all behaviors regarding the actions that are being taken over them.

Manage your nutrient and pH levels, set remote alarms and access your system remotely with your smartphone. Dose up to a 16 part blend (nutrients, additives, pH), maintaining your preset EC and pH settings.

Add up to 16 remote pump modules to automate the delivery of pH and nutrients, based on sensor readings, timers or schedules.

$198.99

$189.99

$898.99

$859.99

$198.99

$189.99

Growlink Remote Pro Relay Panel Growlink Wireless Power Block Growlink Environment Controller
Growlink Remote Pro Relay PanelGrowlink Wireless Power BlockGrowlink Smart Environment - Grow Room Environmental Controller

Six independent relays with wireless communication to Growlink controllers. Perfect to switch third-party relays and contactors in electrical panels, heating and cooling systems, solenoid valves, pumps, etc.

Power Blocks connect wirelessly to both Environment and Nutrient Controllers which tells them when to turn on and off, based on sensor reading, timers or schedules.

Allows you to see, monitor and control a grow operation from anywhere using your smartphone.

$298.99

$284.99

$98.99

$93.99

$698.99

$664.99

iPonic 624 Two Zone Grow Room Controller iPonic 600 Environmental Controller Bio Wave Indoor Unit
iPonic 624 Two Zone Grow Room ControlleriPonic 600 Environmental ControllerBioWave Subsonic Harmonic Wave Machine (Indoor Unit)

Controls 2 grow rooms from 1 controller

All in 1 grow room controller

Increases yield by 20% - up to 1 acre

$2,448.99

$1,698.95

$1,499.99

$2,399.95

$2,099.99

Autopilot Greenhouse Master Controller Autopilot Digital CO2 Controller - Fuzzy Logic Autopilot Analog CO2 Controller
Autopilot Greenhouse Master ControllerAutopilot Digital CO2 Controller - Fuzzy LogicAutopilot Analog CO2 Controller

Controls temperature, humidity & CO2

Very efficient CO2 controller

Economical & simple CO2 control

$604.95

$549.99

$534.95

$469.99

$294.95

$264.99

Autopilot Digital Environmental Controller Autopilot Analog Enviromental Controller Autopilot Digital Automatic pH Controller
Autopilot Digital Environmental ControllerAutopilot Analog Enviromental ControllerAutopilot Digital Automatic pH Controller

Controls temperature & humidity

Controls temperature & humidity

Automatically maintains proper pH

$229.95

$209.99

$184.95

$169.99

$369.95

$332.99

Autopilot pH Controller Sampling Kit Autopilot Desktop CO2 Monitor Autopilot Desktop CO2 Monitor & Data Logger
Autopilot pH Controller Sampling KitAutopilot Desktop CO2 MonitorAutopilot Desktop CO2 Monitor & Data Logger

For use with the Autopilot Digital pH Controller.

Measures CO2, temperature & humidity.

Measures CO2, temperature & humidity. Has data logging capability.

$74.95

$69.99

$134.95

$124.99

$139.95

$129.99

Autopilot Master Digital Timer Titan Controls Mercury 2 - Fan Speed Controller Titan Controls Mercury 3 - Day/Night Fan Controller
Autopilot Master Digital TimerTitan Controls Mercury 2 - Fan Speed ControllerTitan Controls Mercury 3 - Day/Night Fan Controller

Controls (2) 600W lights and includes a cycle timer. Perfect for a 2-light ebb & flow garden.

Accurate fan speed controller from 10-100%.

Automatic controller, based on garden temperature.

$189.95

$174.99

$75.95

$69.99

$116.95

$104.99

Titan Controls Mercury 4 - Multi Function Fan Speed Controller Titan Controls Spartan Series - Cooling Controller Titan Controls Zephyr 1 - Day/Night Temp Controller
Titan Controls Mercury 4 - Multi Function Fan Speed ControllerTitan Controls Spartan Series - Cooling ControllerTitan Controls Zephyr 1 - Day/Night Temp Controller

Set fan speed between 25% and 60%.

Designed for use with exhaust fans

Use with heating and cooling technologies.

$116.95

$104.99

$74.95

$67.99

$89.95

$80.99

Titan Controls Zephyr 2 - High Temp Shut Off Titan Control Zephyr 3 - Cooling/Heating Controller Titan Controls Zephyr 4 - Cooling Thermostat Fan Control
Titan Controls Zephyr 2 - High Temp Shut OffTitan Controls Zephyr 3 - Cooling/Heating ControllerTitan Controls Zephyr 4 - Cooling Thermostat Fan Control

Use with heating and cooling technologies.

Use with heating and cooling technologies.

Use with fan for cooling.

$89.95

$80.99

$101.95

$91.99

$79.95

$71.99

Titan Controls Kronus 2 - Temperature & Humidity Controller Titan Controls Kronus 4 - Temperature & Humidity Controller w/ Night Outlet Titan Controls Eos 1 - Humidify/Dehumidify Controller
Titan Controls Kronus 2 - Temperature & Humidity ControllerTitan Controls Kronus 4 - Temperature & Humidity ControllerTitan Controls Eos 1 - Humidify/Dehumidify Controller

Controls temperature, humidity and CO2 intregration.

Controls temperature and humidity and CO2 intregration using independent temperature and humidity outlets.

Complete solution for humidity control.

$369.95

$332.99

$424.95

$379.99

$128.95

$115.99

Titan Controls Temperature & Humidity Sensor w/ Photocell Titan Controls Atlas 1 - Adjustable CO2 Monitor/Controller Titan Controls Atlas 2 - Preset CO2 Monitor/Controller
Titan Controls Temperature & Humidity Sensor w/ PhotocellTitan Controls Atlas 1 - Adjustable CO2 Monitor/ControllerTitan Controls Atlas 2 - Preset CO2 Monitor/Controller

For use with Titan Controls Kronus 2 & 4 controllers.

Controls CO2 for proper ppm and explosive growth

Preset CO2 controller for explosive growth

$99.95

$89.99

$599.95

$519.99

$333.95

$299.99

Titan Controls Atlas 3 - Day/Night CO2 Monitor/Controller Titan Controls Atlas 4 - 2 Room CO2 Monitor/Controller Titan Controls Atlas 5 - Handheld CO2/Temp/Humidity Monitor
Titan Controls Atlas 3 - Day/Night CO2 Monitor/ControllerTitan Controls Atlas 4 - 2 Room CO2 Monitor/ControllerTitan Controls Atlas 5 - Handheld CO2/Temp/Humidity Monitor

CO2 controller that offers CO2 enrichment or CO2 exhaust

Controls CO2 in 2 rooms!!

Handheld environment monitor: CO2, temperature & humidity

$495.95

$429.99

$888.95

$319.95

$283.73

Titan Controls Atlas 7 - Analog CO2 Controller Titan Controls Atlas 8 - Digital CO2 Controller w/ Fuzzy Logic Titan Controls Saturn 3 - Environmental Controller
Titan Controls Atlas 7 - Analog CO2 ControllerTitan Controls Atlas 8 - Digital CO2 Controller w/ Fuzzy LogicTitan Controls Saturn 3 - Environmental Controller

co2 controls for proper ppm and explosive growth

Digital CO2 controller for efficient CO2 usage.

Controls temperature, humidity and CO2.

$266.95

$239.99

$549.95

$479.99

$674.95

$599.99

Titan Controls Saturn 4 - Environmental Controller Titan Controls Saturn 5 - Digital Environmental Controller Titan Controls Saturn 6 - Digital Environmental Controller
Titan Controls Saturn 4 - Environmental ControllerTitan Controls Saturn 5 - Digital Environmental ControllerTitan Controls Saturn 6 - Digital Environmental Controller

Controls temperature, humidity and CO2.

Controls temperature, humidity and CO2.

Controls temperature, humidity and CO2.

$184.95

$166.99

$227.95

$204.99

$617.95

$549.99

Titan Controls Hyperion 1 Wireless Environmental Controller Titan Controls Hercules 2 - 50 Amp Controller Titan Controls NYX 1 - Day/Night Photocontroller
Titan Controls Hyperion 1 Wireless Environmental ControllerTitan Controls Hercules 2 - 50 Amp ControllerTitan Controls NYX 1 - Day/Night Photocontroller

High quality wireless grow room controller, 150' range.

Lets you control any high amperage device with a 120v timer or controller.

Day/night controller for lights and fans.

$899.95

$799.99

$199.95

$179.99

$114.95

$99.99

Active Air Fan Speed Adjuster Autopilot Analog 24hr Day & Night Cooling/Heating Thermometer Autopilot Analog 24 Hour Recycling Timer
Active Air Fan Speed AdjusterAutopilot Analog 24hr Day & Night Cooling/Heating ThermometerAutopilot Analog 24 Hour Recycling Timer

Fan speed controller

Controls heating & cooling equipment

Controls pumps, fans, CO2 & more.

$27.95

$25.99

$69.95

$64.99

$74.95

$69.99

Hyper Fan Temperature Speed Controller Adjustable Recycling Timer Complete Greenhouse Controller w/PPM option
Hyper Fan Temperature Speed ControllerAdjustable Recycling TimerComplete Greenhouse Controller w/PPM option

Thermostatically changes the fans RPM / speed as needed.

Adjustable cycle timer. Ideal for pumps, fans, CO2 and more.

Controls lighting, CO2, pumps, cooling

$99.95

$92.99

$89.95

$82.95

$439.95

$379.99

Co2 Controller PPM/temp/hum,2-timer,10A@120vac Non-Adjustable Timer, 3 Minutes On/5 Mminutes Off Photocontroller, ON at "Night"
CO2 Controller PPM/temp/humidity, Timer-BasedNFT-2 Non-Adjustable Timer, 3 Minutes On/5 Mminutes OffPhotocontroller, ON at "Night"

Timer-based CO2/temp controller.

Cycle timer - 3 minutes on, 5 minutes off.

Turns equipment ON during dark periods

$279.95

$249.99

$71.95

$64.99

$74.95

Digital Cooling Thermostat Day/Night Adjustable Fan Speed Controller, 15A Glass Reservoir Heater 50W
Digital Cooling/Heating ThermostatDay/Night Automatic Fan Speed ControllerGlass Reservoir Heater 50W

With separate day & night settings

Temperature-based fan speed controller

Ideal for 15 gallon reservoirs

$86.95

$78.99

$109.95

$99.99

$29.99

Glass Reservoir Heater 100W Glass Reservoir Heater 200W Glass Reservoir Heater 300W
Glass Reservoir Heater 100WGlass Reservoir Heater 200WGlass Reservoir Heater 300W

Ideal for 30 gal reservoir

Ideal for 65 gallon reservoir

Ideal for 80 gallon reservoirs

$30.99

$28.99

$35.99

$32.99

$38.99

$35.99

Titanium Submersible Reservoir Heater Jump Start Soil Heating Cable 12' Jump Start Soil Heating Cable 24'
Titanium Submersible Reservoir Heater 350WJump Start Soil Heating Cable 12'Jump Start Soil Heating Cable 24'

Ideal for large reservoirs

Increases soil temperature which leads to explosive growth! Can be arranged to fit any growing area.

Increases soil temperature which leads to explosive growth! Can be arranged to fit any growing area.

$39.95

$35.99

$24.95

$21.99

$29.95

$26.99

Jump Start Soil Heating Cable 48' Hanna BL981411-0 Automatic Mini pH Controller 12v DC Harvest-Master Climate Controller Pro
Jump Start Soil Heating Cable 48'Hanna BL981411-0 Automatic Mini pH Controller 12v DCHarvest-Master Climate Controller Pro

Increases soil temperature which leads to explosive growth! Can be arranged to fit any growing area.

Automatic pH controller - runs on DC power.

Controls lights, CO2, temp, humidity & more

$39.95

$35.99

$213.95

$199.99

$1,997.95

$1,775.99

HydroGEN CO2 Monitor iGS-221 CO2/RH/Temp Controller Day/Night Settings iGS-220 CO2/RH/Temperature Smart Controller
HydroGEN CO2 MonitoriGS-221 CO2/RH/Temp Controller Day/Night SettingsiGS-220 CO2/RH/Temperature Smart Controller

CO2 monitor & controller

Complete environmental control

Controls temperature, humidity & CO2

$359.95

$322.99

$999.99

$919.99

$679.95

$619.99

iGS-100 CO2 Auxiliary Smart Controller iGS-061 CO2 Smart Controller with High-Temp shut-off iGS-110 Relative Humidity/Temperature Controller
iGS-100 CO2 Auxiliary Smart ControlleriGS-061 CO2 Smart Controller with High-Temp shut-offiGS-110 Relative Humidity/Temperature Controller

Controls CO2

CO2 controller with high-temp shut-off

Controls temperature & humidity

$509.95

$449.99

$499.95

$419.99

$439.95

$379.99

iGS-021 Day/Night Temperature Controller iGS-015 Flex Cycle Timer iGS-011 Precise Cycle Controller/Timer
iGS-021 Day/Night Temperature ControlleriGS-015 Flex Cycle TimeriGS-011 Precise Cycle Controller/Timer

Day and night temperature controller

Adjustable cycle timer with digital display.

Adjustable cycle timer.

$99.99

$92.99

$159.95

$147.99

$99.95

$89.99

iGS-012 High Temperature Watchdog with Adjustable Delay ILS120-OFF 120V - 15A OFF Switcher ILS120-ON 120V - 15A ON Switcher
iGS-012 High Temperature Watchdog with Adjustable DelayILS120-OFF 120V - 15A OFF SwitcherILS120-ON 120V - 15A ON Switcher

Protects plants from high temperatures

Used to stop CO2 while venting

Used to power equipment from other circuit

$99.99

$89.99

$89.96

$83.99

$88.96

$82.99

Suncourt DuctStat Plug-In Thermostat Dial-A-Temp Fan Speed Controller iPonic Communication Module
Suncourt DuctStat Plug-In ThermostatDial-A-Temp Fan Speed ControlleriPonic Communication Module

Powers equipment based on temperature.

Fan speed controller

Control your grow room from anywhere

$37.95

$32.95

$30.99

$169.95

$149.99

iPonic 50' Extension Cable DC Adapter 120 Vac - 12 Vdc, All iGS Controllers Titan Controls Patch Cord 50 ft
iPonic 50' Extension CableDC Adapter 120 Vac - 12 Vdc, All iGS ControllersTitan Controls Patch Cord 50 ft

Extends the reach of your iPonic controller

AC to DC adapter for all IGS controllers

For use with Titan Controls Kronus models.

$84.95

$79.99

$19.95

$17.99

$37.95

$33.99

Titan Controls Saturn 3 - Auxiliary Output - 1 Unit Titan Controls Saturn 3 - Auxiliary Output - 2 Units Titan Controls Saturn 6 RS45 Cable & Software
Titan Controls Saturn 3 - Auxiliary Output - 1 UnitTitan Controls Saturn 3 - Auxiliary Output - 2 UnitsTitan Controls Saturn 6 RS45 Cable & Software

Use with Saturn 3.

Use with Saturn 3.

use in conjunction with Saturn 6 DEC

$64.95

$57.99

$116.95

$99.99

$71.95

$59.99

Autopilot Internet Cable and Software for APCECOTH
Autopilot Internet Cable and Software for APCECOTH

Works with the Autopilot Greenhouse Master Controller. Allows you to monitor and control your grow room remotely.

$64.95

$59.99

1 - 88 of 88 items