airguard carbon monoxide detector
Skip itA small market ($52K/yr) — this niche doesn't clear our bar today.
Avg price
Great$48.45avg listing price — sweet spot $15–$100
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Good2.1%return rate — above 6% kills the launch gate
Price range
Good$23.44–$139.42cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Brand share
Okay88%top-5 brand share — brands hold most of the demand
Growth
Okay+0.0%90-day search growth — must beat 0% to launch
Review moat
Bad5,445.06avg incumbent reviews — the moat a new listing must climb
Conversion
Bad1.6%search→purchase rate — share of searches ending in a sale
Market size
Bad$52K$52K/yr · 67K searches
Competition
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
11
Sellers
45
Top-5 brand share
88%
Open market
9%
- Kidde46%
- The Airguard Pro27%
- Dienmern7%
- PinoTec5%
- YISPK4%
- GoveeLife3%
- Open — no brand owns it (5 brands, 9%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 18 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Airguard - 4-In-1 With Real-Time Digital Display Plug-In With Temperature & Humidity Tracking Easy Setup For Home & Apartment (2 Pcs)
The Airguard Pro$79.805.0★1 rev

Kidde Carbon Monoxide Detector Plug-in with AA Battery Backup Easy-to-Read Digital Backlit Display 85 dB Alarm Rotating Plug LED Status Light Indicators 5th Edition COPD
Kidde$44.474.7★27,237 rev

Kidde Carbon Monoxide Detector Plug-In with 9V Battery Backup Digital Display 85 dB Alarm LED Status Light Indicators 3rd Edition
Kidde$39.044.7★27,237 rev

5-in-1 CO2 Carbon Dioxide Detector Dienmern Portable Air Quality Monitor Indoor 1600mAh Powerful Battery CO2 Monitor for CO2/Temp/Humidity LED Display CO2 Detector for Travel/Office/Home/Grow Tents
Dienmern$23.444.1★773 rev

Kidde Carbon Monoxide + Explosive Gas Natural Gas & Propane Alarm Plug-in with 9V Battery Backup Digital Display 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$59.534.6★551 rev
Newest
by launch date
Airguard - 4-In-1 With Real-Time Digital Display Plug-In With Temperature & Humidity Tracking Easy Setup For Home & Apartment (2 Pcs)
The Airguard Pro$79.801 rev

Airguard - 4-In-1 With Real-Time Digital Display Plug-In With Temperature & Humidity Tracking Easy Setup For Home & Apartment (4 Pcs)
The Airguard Pro$139.421 rev

5-in-1 Indoor Air Quality Monitor
CoillBlow$49.061 rev

Air Quality Monitor Indoor 10-in-1 Portable Smart Air Quality Tester for CO2 | TVOC | HCHO | AQI | PM2.5 | PM1.0 | PM10 | Temp | Humidity and Time for Home Office Cars Hotel School Black
Lwyinp$35.2725 rev

Upgraded 10-in-1 Smart Air Quality Monitor Professional Indoor Air Test Kit for CO TVOC HCHO PM0.3-10 PM2.5 Temperature & AQI Home Car Pets Plants Hotels White
YISPK$29.2237 rev
Trending
90-day click momentum
Airguard - 4-In-1 With Real-Time Digital Display Plug-In With Temperature & Humidity Tracking Easy Setup For Home & Apartment (2 Pcs)
The Airguard Pro$79.805.0★

Kidde Carbon Monoxide Detector Plug-in with AA Battery Backup Easy-to-Read Digital Backlit Display 85 dB Alarm Rotating Plug LED Status Light Indicators 5th Edition COPD
Kidde$44.474.7★

Kidde Carbon Monoxide Detector Plug-In with 9V Battery Backup Digital Display 85 dB Alarm LED Status Light Indicators 3rd Edition
Kidde$39.044.7★

5-in-1 CO2 Carbon Dioxide Detector Dienmern Portable Air Quality Monitor Indoor 1600mAh Powerful Battery CO2 Monitor for CO2/Temp/Humidity LED Display CO2 Detector for Travel/Office/Home/Grow Tents
Dienmern$23.444.1★

Kidde Carbon Monoxide + Explosive Gas Natural Gas & Propane Alarm Plug-in with 9V Battery Backup Digital Display 85 dB Alarm LED Status Indicators 3rd Edition
Kidde$59.534.6★
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Excellent product”
“Easy to Use”
“Ease of installation”
“Great value”
“Exactly as advertised”
“Long lasting battery”
“does what its supposed to do”
“Great Detector”
“Genius design”
“seems fairly durable”
What buyers complain about
“Random Beeps”
“Died after about a month”
“How does a brand new battery go dead within not even 3 weeks”
“or this monitor doesn't work”
“The detector is bigger than I thought”
“terrible quality control”
“It was used”
“Does not stay connected to WiFi”
“Inaccurate readings”
“hard to use”