Climate Control & Air Purification

climate control & air purification — pre-owned

236listings

Browse 236 climate control & air purification — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.

CONTROLLER AI+, Environment Controller UIS 8-Port, with Temp Humidity VPD Sensor
UsedBuy It Now

CONTROLLER AI+, Environment Controller UIS 8-Port, with Temp Humidity VPD Sensor

$120.00
+$18.00West Cornwall, US
stufa-stufa
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100.0%Excellent· 101
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CO2 Generator 4 Burner System 🔥🌸May Liquidation Offers Accepted🌸
UsedBuy It NowBest Offer

CO2 Generator 4 Burner System 🔥🌸May Liquidation Offers Accepted🌸

The CO2 Generator 3/4 Burner System is a portable and filterless device designed for whole room use. It features a grey color and LED switch, making it easy to operate and monitor. With its quiet operation and carry handle, it is convenient for use in various settings such as hydroponics, yard, garden, or outdoor living.

$75.00
See listingRocky Point, US
truemarketcollection
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100.0%Excellent· 108
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Titan Controls Atlas 3 CO2 Controller, Day/Night Photocell, 120V
UsedBuy It NowBest Offer

Titan Controls Atlas 3 CO2 Controller, Day/Night Photocell, 120V

Titan Controls Atlas 3 CO2 Controller, Day/Night Photocell, 120V

$120.00
See listingGrass Valley, US
eaglekars-0
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Titan Controls EOS 1 Humidity Controller w/ Adjustable Humidistat 120V
UsedBuy It NowBest Offer

Titan Controls EOS 1 Humidity Controller w/ Adjustable Humidistat 120V

Titan Controls EOS 1 Humidity Controller w/ Adjustable Humidistat 120V

$40.00
See listingTulsa, US
deal_863
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100.0%Excellent· 19
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C02 Meter RAD-0501 Day Night CO2 Monitor and Controller
UsedBuy It NowBest Offer

C02 Meter RAD-0501 Day Night CO2 Monitor and Controller

$70.00
+$11.99Bradley, US
thebottle68
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100.0%Excellent· 1.4k
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Titan Controls Saturn 5 Digital Environmental Controller w CO2 Timer and Valve
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UsedBuy It Now

Titan Controls Saturn 5 Digital Environmental Controller w CO2 Timer and Valve

Titan Controls Saturn 5 Digital Environmental Controller w CO2 Timer and Valve. Very Good condition w Titan Valve shown. There are no instructions included, just the items shown. All in VGC and guaranteed to be in perfect working order.

$69.99
Free ShippingRidgefield, US
vortxrexTOP
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99.6%Excellent· 23.3k
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Titan Controls Atlas 9 CO2 Controller w/ Remote Sensor In Great Condition!
UsedBuy It Now

Titan Controls Atlas 9 CO2 Controller w/ Remote Sensor In Great Condition!

Remote CO2 Sensor (with cable). Adjustable CO2 PPM setpoint. Trusted Atlas series reliability. Has wear as shown. Tested and works. It has been tested and is fully functional. Everything works exactly as it should.

$89.99
Free ShippingWaterville, US
ronz646
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100.0%Excellent· 3.0k
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AC INFINITY UIS to UIS DAISY CHAIN - AC-ADS3
UsedBuy It NowBest Offer

AC INFINITY UIS to UIS DAISY CHAIN - AC-ADS3

The AC INFINITY UIS DAISY CHAIN - AC-ADS3 | EXTRA UIS CHORD INCLUDED!

$15.00
Free ShippingSterling, US
l_nox24
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100.0%Excellent· 26
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Spider Farmer GGS Pro Controller Kits Ideal for Industrial & Commercial Grow
-50%
UsedBuy It NowBest Offer

Spider Farmer GGS Pro Controller Kits Ideal for Industrial & Commercial Grow

GGS Light adapter (connects LED lights to the GGS system). Each sensor will be treated as a single device. Core Grow Data Monitoring. Grow tents. Grow rooms. BOX is not acceptable. Don't forget that good communication can solve all problems.

$369.99$739.98-50%

You save $369.99

Free ShippingOntario, US
spiderfarmer
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99.4%Excellent· 952
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RAD-0501 Co2meter.com C02 Controller Sensor Meter Monitor Works Perfect
UsedBuy It Now

RAD-0501 Co2meter.com C02 Controller Sensor Meter Monitor Works Perfect

This listing is for one CO2 controller from CO2meter.com Model RAD-0501 in perfect working condition with the protective film still applied. this was used but treated gently and works perfectly. Buy with confidence as I have been in eBay member since 2000 and have 100% positive feedback. this will be professionally packaged and shipped UPS ground.

$100.00
Free ShippingOrlando, US
dhermit101
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100.0%Excellent· 174
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3 Digital Timers 2 Blueprint BDT-1 Model BDT601 And 1 Titan 734112
UsedBuy It Now

3 Digital Timers 2 Blueprint BDT-1 Model BDT601 And 1 Titan 734112

3 Digital Timers. Used. In good condition. Please see pictures.

$32.95
Free ShippingVictorville, US
slayer*65
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99.7%Excellent· 848
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C02 Meter RAD-0501 Day Night CO2 Monitor & Controller
UsedBuy It NowBest Offer

C02 Meter RAD-0501 Day Night CO2 Monitor & Controller

$70.00
+$6.57Pasadena, US
scegielski40
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100.0%Excellent· 47
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Titan Controls Atlas 3  CO2 Monitor Controller 702608 TESTED
TOP
UsedBuy It NowBest Offer

Titan Controls Atlas 3 CO2 Monitor Controller 702608 TESTED

$119.99
Free ShippingHowell, US
smartbuy77TOP
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99.2%Excellent· 1.6k
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Titan Controls EOS Complete Digital Humidity Controller ONLY.
TOP
UsedBuy It Now

Titan Controls EOS Complete Digital Humidity Controller ONLY.

🚫don't include any other accessories 🚫.

$85.00
Free ShippingLos Angeles, US
thunder_electronicTOP
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99.7%Excellent· 2.3k
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Titan Controls CO2 Regulator-Monitor-active Aqua-timer
UsedBuy It NowBest Offer

Titan Controls CO2 Regulator-Monitor-active Aqua-timer

Titan Controls CO2 Regulator-Monitor-active Aqua-timer. Condition is Used. Shipped with USPS Ground Advantage.

$125.00
See listingWestminster, US
lostandfoundgoat
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97.7%Good· 107
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GEN-1E ELECTRONIC IGNITION NATURAL GAS CO, GENERATOR
UsedBuy It Now

GEN-1E ELECTRONIC IGNITION NATURAL GAS CO, GENERATOR

The GEN-1E Electronic Ignition Natural Gas CO2 Generator by Custom Automated Products is a gray, compact generator designed for both personal and industrial applications.

$250.00
See listingHealdsburg, US
kornorstone
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100.0%Excellent· 30
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Titan Controls C02 Greenhouse Regulator 702710
UsedBuy It Now

Titan Controls C02 Greenhouse Regulator 702710

If we say the item works, then it was tested to the best of our ability.

$45.99
Free ShippingRose City, US
mrsreporon
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99.7%Excellent· 54.5k
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Carbon Accelerator CO2 Regulator w/ Flow Meter - REG-1 + 2 Air Pipes
UsedBuy It Now

Carbon Accelerator CO2 Regulator w/ Flow Meter - REG-1 + 2 Air Pipes

Carbon Accelerator CO2 Regulator w/ Flow Meter - REG-1 + 2 Air Pipes . Condition is Used. Dispatched with USPS Ground Advantage.

$19.00
See listingWesley Chapel, US
tir-9353
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100.0%Excellent· 20
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Titan Controls Saturn 6 Whole Room CO2 PPM Digital Environmental Controller
UsedBuy It NowBest Offer

Titan Controls Saturn 6 Whole Room CO2 PPM Digital Environmental Controller

out of closed grow op. light use. i

$84.50
See listingClarksville, US
amyscheil
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Titan Controls Atlas 7: CO2 PPM Controller- CO₂ Controller for Grow Rooms
UsedBuy It NowBest Offer

Titan Controls Atlas 7: CO2 PPM Controller- CO₂ Controller for Grow Rooms

$89.95
Free ShippingWyoming, US
equalinvestments
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99.9%Excellent· 8.4k
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Titan Controls ARES 4 NG Natural Gas CO2 Generator Control Panel Free Shipping
TOP
UsedBuy It NowBest Offer

Titan Controls ARES 4 NG Natural Gas CO2 Generator Control Panel Free Shipping

$59.99
Free ShippingRedford, US
tools-plus-more-llcTOP
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99.8%Excellent· 9.1k
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TITAN Controls Atlas 3 Day/Night Carbon Dioxide Monitor
UsedBuy It Now

TITAN Controls Atlas 3 Day/Night Carbon Dioxide Monitor

The TITAN Controls Atlas 3 Day/Night Carbon Dioxide Monitor is a CO2 controller designed for hydroponic systems. With a sleek black design and push-button control style, this monitor is easy to use and efficient for maintaining optimal EC levels. Operating on electrical power with a voltage of 120V, it is lightweight at 180 hundredths pounds and manufactured in 2019. The filtration technology used is electrostatic, making it an effective tool for climate control and air purification in outdoor living spaces.

$100.00
+$8.49Oxnard, US
jore7874
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96.6%Good· 101
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AIROCLEAN420 AIRO-50 AIR SANITATION SYSTEM
UsedBuy It NowBest Offer

AIROCLEAN420 AIRO-50 AIR SANITATION SYSTEM

The AIROCLEAN420 AIRO-50 Air Sanitation System is an industrial air purifier designed by the brand Airoclean420. This gray system operates on 120V with a power consumption of 180W, and features a compact design with dimensions of 13 inches in height and 24 inches in width. It is specifically designed to capture various contaminants including allergens, botrytis, VOC's, blight, gray mold, bacteria, viruses, and mold, making it ideal for industrial applications. Weighing 44 lbs, this air sanitation system effectively cleans the air to provide a healthier environment.

$400.00
+$100.00Mount Vernon, US
thriftyfun2000
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100.0%Excellent· 174
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Titan Controls Zephyr 1 Temperature Controller 120V
UsedBuy It NowBest Offer

Titan Controls Zephyr 1 Temperature Controller 120V

The Titan Controls Zephyr 1 Temperature Controller 120V is a reliable and user-friendly device for controlling the temperature in any room. It features a sleek black design and easy wall mounting, . The controller uses temperature sensor technology and operates on an electrical power source, making it a convenient and efficient choice for maintaining optimal indoor temperatures. Perfect for home, garden, or hydroponic use, this controller is a valuable addition to any space needing precise climate control.

$35.00
See listingGrant, US
sez1575
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100.0%Excellent· 190
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Carbon Accelerator CO2 Regulator w/ Flow Meter - REG-1
UsedBuy It Now

Carbon Accelerator CO2 Regulator w/ Flow Meter - REG-1

Carbon Accelerator CO2 Regulator w/ Flow Meter - REG-1

$15.99
Free ShippingGranada Hills, US
ja_238619
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97.4%Good· 37
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Titan Controls  Tali 3-IN-1 VPD Sensor HG702000 & Substrate Sensor  HGC702601
UsedBuy It Now

Titan Controls Tali 3-IN-1 VPD Sensor HG702000 & Substrate Sensor HGC702601

$219.92
Free ShippingNovato, US
cyber_popeye
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100.0%Excellent· 1.7k
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Autopilot APC8200 CO2 Monitor Controller & Sensor Tested Working D01
UsedBuy It Now

Autopilot APC8200 CO2 Monitor Controller & Sensor Tested Working D01

The Autopilot APC8200 CO2 Monitor and Controller Sensor is a reliable and efficient tool for monitoring and controlling carbon dioxide levels in hydroponic systems. This blue device from the brand Monitor ensures proper ventilation and air purification for optimal plant growth. With its advanced technology, this CO2 controller provides accurate readings and adjustments to maintain the ideal environment for your indoor garden. Perfect for enthusiasts looking to enhance their climate control and air purification systems.

$129.99
+$12.99Parker, US
cavemen2013
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99.2%Excellent· 7.8k
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Titan Controls Ares 8 - 8 Burner NG CO2 Generator - 21.6 CUFT/HR
UsedBuy It NowBest Offer

Titan Controls Ares 8 - 8 Burner NG CO2 Generator - 21.6 CUFT/HR

Has been sitting since.

$180.00
See listingOklahoma City, US
alaynadelrae
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Grozone Control USCO2 CO2 Controller 120V Indoor Push Button Light Sensor
UsedBuy It NowBest Offer

Grozone Control USCO2 CO2 Controller 120V Indoor Push Button Light Sensor

Grozone Control USCO2 CO2 Controller 120V Indoor Push Button Light Sensor

$82.50
See listingPlatteville, US
jua575684
Feedback
100.0%Excellent· 5
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TrolMaster ARS-1 AC Remote Station for Hydro-X Hydroponics Control
UsedBuy It NowBest Offer

TrolMaster ARS-1 AC Remote Station for Hydro-X Hydroponics Control

TrolMaster ARS-1 AC Remote Station for Hydro-X Hydroponics Control

$80.00
See listingNew Bedford, US
tyco6091
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100.0%Excellent· 16
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Autopilot Digital Environmental Controller DEC Temp Humidity CO2 Control System
-15%
UsedBuy It NowBest Offer

Autopilot Digital Environmental Controller DEC Temp Humidity CO2 Control System

Autopilot Digital Environmental Controller (DEC) Lightly used and in excellent working condition. Clean unit with original box included. This controller precisely manages temperature, humidity, and CO2 levels in grow environments. Reliable and easy to program with digital display and push-button controls. Features: • Controls temperature and humidity • CO2 injection coordination • Day/Night mode settings • Built-in min/max temp & humidity memory • Digital display • Remote combination probe • Multiple output controls • Heavy-duty housing Includes: • Autopilot DEC Controller • Attached cables/probe • Original box No issues. Fully functional. Ships well packed.

$93.50$110.00-15%

You save $16.50

See listingBellingham, US
bigdaddywood
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100.0%Excellent· 134
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Autopilot 8 Burner High Altitude Co2 LP Generator APCG8LPH
UsedBuy It Now

Autopilot 8 Burner High Altitude Co2 LP Generator APCG8LPH

Designed for high altitudes and tested at an area 7500 feet above sea level, it features multiple compensation for atmospheric differences at high altitudes and was created for gardeners at 5,000 feet or more above sea level.

$189.99
+$38.70Boulder, US
jwaterloo11128
Feedback
99.6%Excellent· 5.0k
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Titan Controls Atlas 1 CO2 Monitor/Controller with Remote Sensor
UsedBuy It Now

Titan Controls Atlas 1 CO2 Monitor/Controller with Remote Sensor

The Titan Controls Atlas 1 CO2 Monitor/Controller is a digital device designed for industrial and whole room applications. It features a remote sensor for monitoring and controlling CO2 levels, making it ideal for use in hydroponics systems and outdoor spaces like yards and gardens. The sleek design in white and green color options combines plastic and metal materials for durability. With electrical power source and voltage of 115 V, this CO2 monitor/controller is a reliable choice for maintaining optimal air quality in various settings. This item is missing the cable for the remote sensor.

$50.00
See listingKalamazoo, US
brdo-3077
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99.6%Excellent· 497
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Sentinel CHHC Cooling Heating Humidity CO2 Temperature Controller AC Works Well!
UsedBuy It NowBest Offer

Sentinel CHHC Cooling Heating Humidity CO2 Temperature Controller AC Works Well!

Includes plug-in CO2 sensor. Works Great! Item must be in original condition.

$119.95
Free ShippingNovi, US
melayna123
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100.0%Excellent· 164
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Titan Controls ATLAS 9 CO2 Controller with Remote Sensor
UsedBuy It NowBest Offer

Titan Controls ATLAS 9 CO2 Controller with Remote Sensor

Used EOS-2 Digital Humidity Controller w/ sensor

$65.00
See listingShasta Lake, US
andy-badd440
Feedback
100.0%Excellent· 1.1k
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Autopilot CO2/Temp/RH Monitor Data Logger NDIR Sensor Gray USB Wall/Desktop
UsedBuy It NowBest Offer

Autopilot CO2/Temp/RH Monitor Data Logger NDIR Sensor Gray USB Wall/Desktop

Autopilot CO2/Temp/RH Monitor Data Logger NDIR Sensor Gray USB Wall/Desktop

$65.00
See listingMorgantown, US
pare_sparts
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100.0%Excellent· 75
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NS-10T 10 Atomizer 350w Ultrasonic Mist Fogger w/ Pymeter Dual Outlet Controller
-15%
UsedBuy It NowBest Offer

NS-10T 10 Atomizer 350w Ultrasonic Mist Fogger w/ Pymeter Dual Outlet Controller

CEE D4U Ultrasonic Mist Maker Fogger unit model NS-10T paired with an NS-350W 45V special power supply. This industrial-grade 10-head humidifier system is designed for high-volume mist production, featuring a durable stainless steel atomizer bar and a waterproof IP67 rated power transformer. Ideal for large-scale hydroponics, greenhouse humidity control, or dramatic stage effects, the system operates on DC 45-48V with a current draw of 5.5-5.8A. The power supply handles 90-130Vac input, making it compatible with standard US outlets. Included is a Pymeter digital humidity controller for automated environment management. Humidity Controller for up to a 10*12 area with exact high/low humidity and temperature On/Off programming . Used for Controlled Humidity Environments

$41.65$49.00-15%

You save $7.35

See listingColorado Springs, US
pnk0090
Feedback
99.5%Excellent· 755
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Autopilot 4 Burner CO2 Generator Liquid Propane APCG8NGH Grow Room,no power cord
UsedBuy It Now

Autopilot 4 Burner CO2 Generator Liquid Propane APCG8NGH Grow Room,no power cord

The Autopilot 4 Burner CO2 Generator is a reliable choice for maintaining optimal CO2 levels in your grow room. This wall-mounted CO2 generator, with a power source of electric, features an analog/mechanical control style and a sleek gray color. Manufactured in 2020 by Autopilot, this model is built for efficiency and is Energy Star rated with 10 stars. Incorporated with liquid propane capabilities, this CO2 generator is a valuable addition to your hydroponics setup, providing the necessary CO2 to promote healthy plant growth. Tested and worked, no power cord.

$150.00
Free ShippingBerthoud, US
scclo-2812
Feedback
98.1%Excellent· 100
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Hydrofarm Autopilot Digital CO2 Hydroponic Controller
UsedBuy It Now

Hydrofarm Autopilot Digital CO2 Hydroponic Controller

The Hydrofarm Autopilot Digital CO2 Hydroponic Controller A is an innovative device designed to optimize the growth of plants in a hydroponic setup. Its digital control style allows for precise regulation of carbon dioxide levels, which is crucial for enhancing photosynthesis and overall plant health. This CO2 controller by Autopilot is geared towards enthusiasts looking to improve their gardening efficiency with cutting-edge technology.

$60.00
Free ShippingAlba, US
camlevy_0
Feedback
97.9%Good· 61
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Plug'n'Grow PNG-030 Humidity Controller Hydroponics Analog Wall Mount
UsedBuy It NowBest Offer

Plug'n'Grow PNG-030 Humidity Controller Hydroponics Analog Wall Mount

The Plug'n'Grow PNG-030 Humidity Controller is a wall-mounted analog device designed for controlling humidity levels in hydroponic systems. It features a white or black plastic construction, making it suitable for various indoor environments. With its electrical power source and mechanical control style, this humidity controller provides easy adjustment capabilities for maintaining optimal humidity levels in your hydroponic setup. Perfect for those looking to create a controlled environment for their plants to thrive.

$75.00
See listingBrighton, US
market45
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100.0%Excellent· 46
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