co2 controller
Skip itA small market ($48K/yr) — this niche doesn't clear our bar today.
Quality gap
Incredible3.9★avg incumbent rating — lower means beatable quality
Review moat
Great206.38avg incumbent reviews — the moat a new listing must climb
Avg price
Good$115.73avg listing price — sweet spot $15–$100
Conversion
Okay3.0%search→purchase rate — share of searches ending in a sale
Price range
Okay$41.37–$225.03cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Returns
Bad5.1%return rate — above 5% kills the launch gate
Growth
Bad-3.4%90-day search growth — must beat 0% to launch
Market size
Bad$48K$48K/yr · 14K searches
According to Flapen's Amazon United States niche tracking, co2 controller is a $48K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 38/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
co2 controller market data
- Units sold / yr
- 250–500
- avg 0–100/product
- Revenue / yr
- $29K–$58K
- units × avg price
- Conversion rate
- 3.0%
- Avg BSR
- #255
- Page quality
- 0%
- Prime
- 92%
- Sponsored
- 100%
- Out of stock
- 9.8%
- Avg brand age
- 60 months
- Avg seller age
- 170 days
Competition & brand share
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
8 falling
Sellers
23
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
67%
Top 20: 100%
Open market
6%
- Inkbird27%
- briidea22%
- AC Infinity21%
- DANOPLUS13%
- VIVOSUN7%
- Autopilot5%
- Open — no brand owns it (2 brands, 6%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -3.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top co2 controller products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$128.804.4★58 rev
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$124.983.9★169 rev
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$118.774.3★148 rev
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$66.320.0★0 rev
VIVOSUN Hydroponics CO2 Regulator Emitter System with Solenoid Valve Flowmeter for Grow Room Grow Tent Garden
VIVOSUN$41.374.2★1,394 rev
Newest
by launch datebriidea 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$66.320 rev
Briidea CO2 Controller and Monitor Day and Night Programmable CO2 Controller with Remote Sensor for Greenhouses
briidea$70.974 rev
CO2 Controller for Plant Dual-Plug System for Direct Connection to CO2 Regulator and Exhaust Fans.Suitable for Greenhouses Grow Room and Plant Factory
Elaphodus$108.1913 rev
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$192.1294 rev
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$72.7313 rev
Trending
90-day click momentumbriidea 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$66.320.0★
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
JuviPerpric$104.813.5★
VIVOSUN Hydroponics CO2 Regulator Emitter System with Solenoid Valve Flowmeter for Grow Room Grow Tent Garden
VIVOSUN$41.374.2★
Briidea CO2 Controller and Monitor Day and Night Programmable CO2 Controller with Remote Sensor for Greenhouses
briidea$70.972.6★
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)
Inkbird$139.574.4★
What buyers say about co2 controller
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to use”
“Better than other Brands”
“Working exactly as expected so far”
“offers excellent value for money”
“Easy to set up and make adjustments”
“Solid controller”
“It is compatible with grow lights”
“I like that this bundle pairs a controller with a CO2 sensor”
“Perfect for indoor growing”
“the design is awesome”
What buyers complain about
“Horrendous instructions”
“Its off my a few hundred PPM more than its allowing me to calibrate”
“Failed in 6 months”
“Didnt work for me”
“Product doesn't work as stated”
“This unit is very difficult to use”
“do not provide enough guidance for setup or operation”
“does not link to your phone Bluetooth or Wi-Fi like other similar devices”
“This thing is junk”
“Even spilled water on it”
Top return reasons
Common questions
- Is co2 controller profitable to sell on Amazon United States?
- The niche generates $48K/yr across 13 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is -3.4%. Flapen's verdict: Skip it (38/100).
- How competitive is the co2 controller niche?
- 8 brands and 23 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in co2 controller?
- Top complaints mined from reviews: Instructions/User Manual/Troubleshooting, Measurement/Reading Accuracy, Durability. The return rate is 5.1% — above our launch gate.
- When does demand for co2 controller peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the co2 controller niche?
- Listings span $41.37–$225.03; the average listing price is $115.73 (sweet spot $15–$100). The average incumbent carries 206 reviews — the moat a new listing must climb.