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Temp / Humidity Control

BAY HYDRO LLC has the largest selection of temperature, humidity, & CO2 controllers to keep your garden thriving. BAY HYDRO is Your One Stop Garden Shop.

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Active Air Commercial Dehumidifier 100 Pint
Active Air Commercial Dehumidifier 100 Pint
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$881.95
Active Air Commercial Dehumidifier 180 Pint
Active Air Commercial Dehumidifier 180 Pint
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$1,259.95
Active Air Commercial Dehumidifier 60 Pint
Active Air Commercial Dehumidifier 60 Pint
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$577.95
Active Air Dehumidifier 45 Pint
Active Air Dehumidifier 45 Pint
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$315.95
Active Air Dehumidifier 70 Pint
Active Air Dehumidifier 70 Pint
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$391.95
Active Air Dehumidifier 95 Pint
Active Air Dehumidifier 95 Pint
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$693.95
Active Air Hygro-Thermometer
Active Air Hygro-Thermometer
$32.95
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Active Air Indoor-Outdoor Thermometer W/ Hygrometer
Active Air Indoor-Outdoor Thermometer W/ Hygrometer
$29.95
Add To Cart
Aprilaire Digital Humidistat for Steam Humidifier
Aprilaire Digital Humidistat for Steam Humidifier
$500.95
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Aprilaire Color Touchscreen Wi-Fi Automation IAQ Thermostat
Aprilaire Color Touchscreen Wi-Fi Automation IAQ Thermostat
$573.95
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Aprilaire Dehumidifier Hanging Kit
Aprilaire Dehumidifier Hanging Kit
$189.95
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Aprilaire Dehumidifier 130 pints/day
Aprilaire Dehumidifier 130 pints/day
$2,267.95
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Aprilaire Dehumidifier 70 pints/day
Aprilaire Dehumidifier 70 pints/day
$1,664.95
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Aprilaire Dehumidifier 95 pints/day
Aprilaire Dehumidifier 95 pints/day
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$1,763.95
Aprilaire Digital Dehumidifier Control
Aprilaire Digital Dehumidifier Control
$133.95
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Aprilaire Touchscreen Wi-Fi Automation IAQ Thermostat
Aprilaire Touchscreen Wi-Fi Automation IAQ Thermostat
$436.95
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Aprilaire Touchscreen Wi-Fi Automation Thermostat W/ Integrated IAQ Solution
Aprilaire Touchscreen Wi-Fi Automation Thermostat W/ Integrated IAQ Solution
$352.95
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Autopilot Analog Environmental Controller
Autopilot Analog Environmental Controller
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$176.95
Autopilot Greenhouse Master Controller
Autopilot Greenhouse Master Controller
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$586.95
C.A.P. ART-DNe Adjustable Recycling Timer
C.A.P. ART-DNe Adjustable Recycling Timer
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$98.95
C.A.P. Atmosphere Controller Temp & Humidity 15A@120V Combined
C.A.P. Atmosphere Controller Temp & Humidity [email protected] Combined
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$170.95
C.A.P. CGC-1e Complete Greenhouse Controller (W/ ppm option)
C.A.P. CGC-1e Complete Greenhouse Controller (W/ ppm option)
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$466.95
C.A.P. CO2-2e CO2 Temperature & Humidity Controller W/ ppm option
C.A.P. CO2-2e CO2 Temperature & Humidity Controller W/ ppm option
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$291.95
C.A.P. TMP-1 Cooling & Heating Controller 50-115F 15A @ 120V
C.A.P. TMP-1 Cooling & Heating Controller 50-115F 15A @ 120V
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$75.95
C.A.P. TMP-DNe Day/Night Cooling & Heating Thermostat
C.A.P. TMP-DNe Day/Night Cooling & Heating Thermostat
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$94.95
C.A.P. VSC-DNe Day/Night Adjustable Fan Speed Controller
C.A.P. VSC-DNe Day/Night Adjustable Fan Speed Controller
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$113.95
Eva-Dry E-333 Mini-Dehumidifier
Eva-Dry E-333 Mini-Dehumidifier
$26.95
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Eva-Dry E-500 Mini Renewable Wireless Dehumidifier
Eva-Dry E-500 Mini Renewable Wireless Dehumidifier
$35.95
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Eva-Dry EDV-1100 Petite Mini-Dehumidifier
Eva-Dry EDV-1100 Petite Mini-Dehumidifier
$69.95
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Eva-Dry EDV-2200 2 Pint Mini-Dehumidifier
Eva-Dry EDV-2200 2 Pint Mini-Dehumidifier
$125.95
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Harvest-Master Climate Controller Pro
Harvest-Master Climate Controller Pro
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$2,039.95
Intelligent Growing Systems CO2 Controller W/ High-Temp Shutoff
Intelligent Growing Systems CO2 Controller W/ High-Temp Shutoff
$488.95
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Intelligent Growing Systems Day and Night Cycle Timer W/ Display
Intelligent Growing Systems Day and Night Cycle Timer W/ Display
$173.95
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Intelligent Growing Systems Day and Night Humidity Controller W/ Display
Intelligent Growing Systems Day and Night Humidity Controller W/ Display
$200.95
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Intelligent Growing Systems Day and Night Temperature Controller W/ Display
Intelligent Growing Systems Day and Night Temperature Controller W/ Display
$152.95
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Intelligent Growing Systems Lighting Timer W/ High-Temp Shutoff
Intelligent Growing Systems Lighting Timer W/ High-Temp Shutoff
UNFORTUNATELY THIS PRODUCT HAS BEEN DISCONTINUED OR NO LONGER STOCKED AT THIS TIME.
$151.95
LTL ELEMENT1 Analog Atmosphere Control 4-outlets
LTL ELEMENT1 Analog Atmosphere Control 4-outlets
$130.95
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LTL ELEMENT2 Basic Digital Atmosphere controls 4-outlets
LTL ELEMENT2 Basic Digital Atmosphere controls 4-outlets
$177.95
Add To Cart
LTL ELEMENT3 Deluxe Digital Atmosphere Controls - 4 - outlets
LTL ELEMENT3 Deluxe Digital Atmosphere Controls - 4 - outlets
$538.95
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