--- title: "co2 controller — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/patio-lawn-garden/co2-controller" last_updated: "2026-07-09T21:45:22.901Z" locale: en meta: description: "a small market ($48K/yr) — co2 controller doesn't clear our bar today." "og:description": "a small market ($48K/yr) — co2 controller doesn't clear our bar today." "og:title": "co2 controller — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen" --- Back to Flapen home # **co2 controller** **Skip it****41/100 ** a small market ($48K/yr) — co2 controller doesn't clear our bar today. **Market/yr** **$48K** **Growth (1y)** **+96.3%** **Products** **13** **Brands** **8** was 9 a year ago **Sellers** **23** **Price range** **$41.37–$225.03** **Returns** **5.1%** **Rating** **3.9★** **Skip it** Scored 41/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **2** ×0.30 Growth **64** ×0.30 Competition **35** ×0.20 Quality gap **87** ×0.10 Returns **59** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +96.3% year over year. 500250Spike '24Spike '25Prime Day '25Holiday '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND No pronounced peak months · busiest ÷ quietest = 1.4× ## **Competition** - Inkbird27% - briidea22% - AC Infinity21% - DANOPLUS13% - VIVOSUN7% - Autopilot5% - Other (2 brands)6% The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them. 8 brands and 23 sellers compete here. **Brands** **8 **▼falling was 9 a year ago **Sellers** **23** **Top 5 brand share** **90%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![Inkbird ICC-510 CO2 Controller CO2 Meter Dual Plug Carbon Dioxide Controller Fit with CO2 Regulator and Inline Exhaust Fan for Grow Tent Grow Room Greenhouse Grower](https://m.media-amazon.com/images/I/31blBD4r8-L.jpg) [**Inkbird ICC-510 CO2 Controller CO2 Meter Dual Plug Carbon Dioxide Controller Fit with CO2 Regulator and Inline Exhaust Fan for Grow Tent Grow Room Greenhouse Grower**](https://www.amazon.com/dp/B0DHGV1YYM) Inkbird$128.804.4★5824%▼falling 2 ![AC Infinity CO2 Controller Smart Outlet Carbon Dioxide Monitor Two-Plug System Best Fit with CO2 Regulators and Inline Exhaust Fans Adjusts CO2 for Grow Tents Grow Rooms Greenhouses](https://m.media-amazon.com/images/I/410xaS4OH6L.jpg) [**AC Infinity CO2 Controller Smart Outlet Carbon Dioxide Monitor Two-Plug System Best Fit with CO2 Regulators and Inline Exhaust Fans Adjusts CO2 for Grow Tents Grow Rooms Greenhouses**](https://www.amazon.com/dp/B0BWZYVRYL) AC Infinity$124.983.9★16916%▼falling 3 ![CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor Day and Night Relay Function NDIR CO2 Sensor for Green House Grow Rooms Factory Home Office](https://m.media-amazon.com/images/I/41MewDiN-fL.jpg) [**CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor Day and Night Relay Function NDIR CO2 Sensor for Green House Grow Rooms Factory Home Office**](https://www.amazon.com/dp/B08H8H9D2M) DANOPLUS$118.774.3★14810%▼falling 4 ![briidea CO2 Monitor and Controller Newest CO2 Controller with Remote Sensor Photocell for Day/Night Control Programmable Function to Save CO2 for Grow Room Greenhouse](https://m.media-amazon.com/images/I/41cE-lj73iS.jpg) [**briidea CO2 Monitor and Controller Newest CO2 Controller with Remote Sensor Photocell for Day/Night Control Programmable Function to Save CO2 for Grow Room Greenhouse**](https://www.amazon.com/dp/B0GJRM57PL) briidea$66.320.0★010%▲rising 5 ![VIVOSUN Hydroponics CO2 Regulator Emitter System with Solenoid Valve Flowmeter for Grow Room Grow Tent Garden](https://m.media-amazon.com/images/I/41QkBoCdwtL.jpg) [**VIVOSUN Hydroponics CO2 Regulator Emitter System with Solenoid Valve Flowmeter for Grow Room Grow Tent Garden**](https://www.amazon.com/dp/B01IHAYTV0) VIVOSUN$41.374.2★1,3947%▲rising 6 ![Briidea Wi-Fi CO2 Controller for Grow Tent Two-Plug System for CO2 Regulatos and Inline Exhaust Fans Smart Environmental WiFi-Controller to Adjusts CO2 for Grow Tents Grow Rooms Greenhouses](https://m.media-amazon.com/images/I/41wD6LERp-L.jpg) [**Briidea Wi-Fi CO2 Controller for Grow Tent Two-Plug System for CO2 Regulatos and Inline Exhaust Fans Smart Environmental WiFi-Controller to Adjusts CO2 for Grow Tents Grow Rooms Greenhouses**](https://www.amazon.com/dp/B0DQ71W7X4) briidea$72.732.9★136%▼falling 7 ![Briidea CO2 Controller and Monitor Day and Night Programmable CO2 Controller with Remote Sensor for Greenhouses](https://m.media-amazon.com/images/I/31-oth-oxEL.jpg) [**Briidea CO2 Controller and Monitor Day and Night Programmable CO2 Controller with Remote Sensor for Greenhouses**](https://www.amazon.com/dp/B0FHJPMM39) briidea$70.972.6★45%—flat 8 ![AC Infinity Controller AI+ with CO2 Sensor Bundle AI-Powered Learning CO2 Data Tracking for Gardens & Grow Tents Temp Humidity & VPD Monitoring for Dynamic Level Adjusting Bluetooth & WiFi App](https://m.media-amazon.com/images/I/31-AEePjmOL.jpg) [**AC Infinity Controller AI+ with CO2 Sensor Bundle AI-Powered Learning CO2 Data Tracking for Gardens & Grow Tents Temp Humidity & VPD Monitoring for Dynamic Level Adjusting Bluetooth & WiFi App**](https://www.amazon.com/dp/B0DYB2H6LM) AC Infinity$192.124.2★945%—flat 9 ![Autopilot CO2 Monitor & Controller w/15 Remote Sensor](https://m.media-amazon.com/images/I/41XNy9rZg2S.jpg) [**Autopilot CO2 Monitor & Controller w/15 Remote Sensor**](https://www.amazon.com/dp/B0748ZRD2X) Autopilot$225.034.6★5545%▼falling 10 ![CO2 Controller for Plant Dual-Plug System for Direct Connection to CO2 Regulator and Exhaust Fans.Suitable for Greenhouses Grow Room and Plant Factory](https://m.media-amazon.com/images/I/41fn1FSNinL.jpg) [**CO2 Controller for Plant Dual-Plug System for Direct Connection to CO2 Regulator and Exhaust Fans.Suitable for Greenhouses Grow Room and Plant Factory**](https://www.amazon.com/dp/B0FC3657RC) Elaphodus$108.194.2★133%▼falling 11 ![Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Grow Room and CO2 Generator with CO2 Sensor for Home Grower (CO2 Controller + S01 Sensor)](https://m.media-amazon.com/images/I/41NORCUMc2L.jpg) [**Inkbird ICC-500T CO2 Controller CO2 Meter Carbon Dioxide Controller for Grow Room and CO2 Generator with CO2 Sensor for Home Grower (CO2 Controller + S01 Sensor)**](https://www.amazon.com/dp/B08LZF4VZX) Inkbird$139.574.4★2003%—flat 12 ![CO2 Controller Dual Outlets Carbon Dioxide Controller for Grow Room Two Smart Plugs Automatically Control Regulators and Fans NDIR Sensor and Display CO2 Chart Temp RH](https://m.media-amazon.com/images/I/41X4McH4hHL.jpg) [**CO2 Controller Dual Outlets Carbon Dioxide Controller for Grow Room Two Smart Plugs Automatically Control Regulators and Fans NDIR Sensor and Display CO2 Chart Temp RH**](https://www.amazon.com/dp/B0D9VDYP31) DANOPLUS$110.774.1★253%▼falling 13 ![JuviPerpric CO2 Controller Carbon Dioxide Controller Dual Outlets Two-Plug System CO2 Sensor with Large Screen Display CO2 Monitor CO2 Controller for Grow Room and Grow Tent](https://m.media-amazon.com/images/I/41GrKL0bBuL.jpg) [**JuviPerpric CO2 Controller Carbon Dioxide Controller Dual Outlets Two-Plug System CO2 Sensor with Large Screen Display CO2 Monitor CO2 Controller for Grow Room and Grow Tent**](https://www.amazon.com/dp/B0DFBTZ2LG) JuviPerpric$104.813.5★112%▲rising ## **Product shelf** All 13 tracked products in this niche. Top sellersNewestTrending [![Inkbird ICC-510 CO2 Controller CO2 Meter Dual Plug Carbon Dioxide Controller Fit with CO2 Regulator and Inline Exhaust Fan for Grow Tent Grow Room Greenhouse Grower](https://m.media-amazon.com/images/I/31blBD4r8-L.jpg)**Inkbird ICC-510 CO2 Controller CO2 Meter Dual Plug Carbon Dioxide Controller Fit with CO2 Regulator and Inline Exhaust Fan for Grow Tent Grow Room Greenhouse Grower** Inkbird**$128.80**4.4★58 reviews](https://www.amazon.com/dp/B0DHGV1YYM) [![AC Infinity CO2 Controller Smart Outlet Carbon Dioxide Monitor Two-Plug System Best Fit with CO2 Regulators and Inline Exhaust Fans Adjusts CO2 for Grow Tents Grow Rooms Greenhouses](https://m.media-amazon.com/images/I/410xaS4OH6L.jpg)**AC Infinity CO2 Controller Smart Outlet Carbon Dioxide Monitor Two-Plug System Best Fit with CO2 Regulators and Inline Exhaust Fans Adjusts CO2 for Grow Tents Grow Rooms Greenhouses** AC Infinity**$124.98**3.9★169 reviews](https://www.amazon.com/dp/B0BWZYVRYL) [![CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor Day and Night Relay Function NDIR CO2 Sensor for Green House Grow Rooms Factory Home Office](https://m.media-amazon.com/images/I/41MewDiN-fL.jpg)**CO2 Controller Carbon Dioxide Controller CO2 Meter Monitor Day and Night Relay Function NDIR CO2 Sensor for Green House Grow Rooms Factory Home Office** DANOPLUS**$118.77**4.3★148 reviews](https://www.amazon.com/dp/B08H8H9D2M) [![briidea CO2 Monitor and Controller Newest CO2 Controller with Remote Sensor Photocell for Day/Night Control Programmable Function to Save CO2 for Grow Room Greenhouse](https://m.media-amazon.com/images/I/41cE-lj73iS.jpg)**briidea CO2 Monitor and Controller Newest CO2 Controller with Remote Sensor Photocell for Day/Night Control Programmable Function to Save CO2 for Grow Room Greenhouse** briidea**$66.32**0.0★0 reviews](https://www.amazon.com/dp/B0GJRM57PL) [![VIVOSUN Hydroponics CO2 Regulator Emitter System with Solenoid Valve Flowmeter for Grow Room Grow Tent Garden](https://m.media-amazon.com/images/I/41QkBoCdwtL.jpg)**VIVOSUN Hydroponics CO2 Regulator Emitter System with Solenoid Valve Flowmeter for Grow Room Grow Tent Garden** VIVOSUN**$41.37**4.2★1,394 reviews](https://www.amazon.com/dp/B01IHAYTV0) [![Briidea Wi-Fi CO2 Controller for Grow Tent Two-Plug System for CO2 Regulatos and Inline Exhaust Fans Smart Environmental WiFi-Controller to Adjusts CO2 for Grow Tents Grow Rooms Greenhouses](https://m.media-amazon.com/images/I/41wD6LERp-L.jpg)**Briidea Wi-Fi CO2 Controller for Grow Tent Two-Plug System for CO2 Regulatos and Inline Exhaust Fans Smart Environmental WiFi-Controller to Adjusts CO2 for Grow Tents Grow Rooms Greenhouses** briidea**$72.73**2.9★13 reviews](https://www.amazon.com/dp/B0DQ71W7X4) [![Briidea CO2 Controller and Monitor Day and Night Programmable CO2 Controller with Remote Sensor for Greenhouses](https://m.media-amazon.com/images/I/31-oth-oxEL.jpg)**Briidea CO2 Controller and Monitor Day and Night Programmable CO2 Controller with Remote Sensor for Greenhouses** briidea**$70.97**2.6★4 reviews](https://www.amazon.com/dp/B0FHJPMM39) [![AC Infinity Controller AI+ with CO2 Sensor Bundle AI-Powered Learning CO2 Data Tracking for Gardens & Grow Tents Temp Humidity & VPD Monitoring for Dynamic Level Adjusting Bluetooth & WiFi App](https://m.media-amazon.com/images/I/31-AEePjmOL.jpg)**AC Infinity Controller AI+ with CO2 Sensor Bundle AI-Powered Learning CO2 Data Tracking for Gardens & Grow Tents Temp Humidity & VPD Monitoring for Dynamic Level Adjusting Bluetooth & WiFi App** AC Infinity**$192.12**4.2★94 reviews](https://www.amazon.com/dp/B0DYB2H6LM) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Ease Of Use**32% *“Easy to use”* **Quality-Overall**16% *“Better than other Brands”* **Advertised Vs Actual Product**13% *“Working exactly as expected so far”* **Value For Money**10% *“offers excellent value for money”* **Assembly/Installation**8% *“Easy to set up and make adjustments”* **Strength**4% *“Solid controller”* **Compatibility-Overall**3% *“It is compatible with grow lights”* **Sensor**3% *“I like that this bundle pairs a controller with a CO2 sensor”* **Plant Growth**3% *“Perfect for indoor growing”* **Design-Overall**3% *“the design is awesome”* ### **What buyers complain about ** **Instructions/User Manual/Troubleshooting**26% *“Horrendous instructions”* **Measurement/Reading Accuracy**17% *“Its off my a few hundred PPM more than its allowing me to calibrate”* **Durability**13% *“Failed in 6 months”* **Functionality-Overall**13% *“Didnt work for me”* **Defective Material/Parts**7% *“Product doesn't work as stated”* **Ease Of Use**6% *“This unit is very difficult to use”* **Assembly/Installation**6% *“do not provide enough guidance for setup or operation”* **Connectivity-Overall**3% *“does not link to your phone Bluetooth or Wi-Fi like other similar devices”* **Quality-Overall**3% *“This thing is junk”* **Leak-Proof**3% *“Even spilled water on it”* #### **Top return reasons**- Functionality-Overall26% - Defective Material/Parts13% - Measurement/Reading Accuracy11% - Compatibility-Overall8% - Connectivity-Overall7% - Advertised Vs Actual Product6% - Product Condition6% - Size-Overall4% - Value For Money4% - Ease Of Use4%