gas monitor
Skip itPrices mostly outside the sweet spot ($21.91–$908.83) — this niche doesn't clear our bar today.
Review moat
Good682.74avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Returns
Good2.9%return rate — above 5% kills the launch gate
Competition
Okay56%top-5 click share — leaders hold, buyers still browse
Brand share
Okay80%top-5 brand share — brands hold most of the demand
Avg price
Okay$237.95avg listing price — sweet spot $15–$100
Conversion
Okay3.1%search→purchase rate — share of searches ending in a sale
Market size
Bad$96K$96K/yr · 13K searches
Growth
Bad-1.9%90-day search growth — must beat 0% to launch
Price range
Bad$21.91–$908.83cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, gas monitor is a $96K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 80% of demand. Verdict: Skip it — 39/100.
Data updated Jul 30, 2026 · scored weekly · How we score niches
gas monitor market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $178K–$238K
- units × avg price
- Conversion rate
- 3.1%
- Avg BSR
- #75
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 87%
- Out of stock
- 3.2%
- Avg brand age
- 58 months
- Avg seller age
- 152 days
Competition & brand share
The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.Brands
12 rising
Sellers
61
Top-5 brand share
80%
Top 20: 100%
Top-5 click share
56%
Top 20: 97%
Open market
14%
- TOPTES40%
- Kidde13%
- FORENSICS DETECTORS FD10%
- BW Technologies10%
- XLA Alert7%
- Forsensal6%
- Open — no brand owns it (6 brands, 14%)
Demand
Weekly Amazon search volume, last 26 weeks — -1.9% search growth over the last 90 days.Top gas monitor 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 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
TopTes Guard-101 Gas Detector 4 Gas Monitor for H2S CO LEL and O2 with Vibration Visual and Audible Alarms 14h Long Battery Life Safety Explosion-Proof for Work Home - Orange
TOPTES$95.654.2★552 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$59.284.6★551 rev

TopTes Guard-863Pro 4 Gas Monitor Multi Gas Detector for HS CO LEL and O with TFT Color Screen Upgraded O Sensor (5-Year Lifespan) USB Data Export 18h Battery Life Reliable for Work & Home
TOPTES$155.714.5★101 rev

Gas Detector with Pump 4 Gas Monitor Multi Gas Detector CO EX O2 H2S Monitor 3000mAh Rechargeable 4 Gas Monitor with Calibration Kit Portable LCD Display with Clip Sewer Gas Detector 4 Gas Meter
Forsensal$133.214.1★79 rev

XLA Alert Portable Gas Detector Gas Clip 4 Gas Monitor Meter Tester Analyzer Rechargeable LCD Display Sound Light Shock Air Quality Tester 2 Year Detector
XLA Alert$91.644.1★148 rev
Newest
by launch date
NOYAFA 4 in 1 Gas Detector Gas Leak Detector for H2S CO LEL O2 Explosion-Proof Gas Sniffer with Audible Visual Alarms 15H Battery for Industrial & Commercial Use
NOYAFA$99.5813 rev

4 Gas Meter for Confined Space | USA NIST Calibration | O2 CO H2S LEL
FORENSICS DETECTORS FD$196.3824 rev

4 Gas Monitor | Mini & Small | USA NIST Calibration | O2 CO H2S LEL | USB Recharge |
FORENSICS DETECTORS FD$289.6816 rev

TopTes Guard-863Pro 4 Gas Monitor Multi Gas Detector for HS CO LEL and O with TFT Color Screen Upgraded O Sensor (5-Year Lifespan) USB Data Export 18h Battery Life Reliable for Work & Home
TOPTES$155.71101 rev

ADKS-4 Portable Gas Detector 4 Gas Monitor H2S O2 CO and LEL Multiple Indicator with Vibration Audible Visual 4 Gas Monitor Personal Rechargeable Gas Sniffer Alarm with LCD
CHNADKS$77.8054 rev
Trending
90-day click momentum
NOYAFA 4 in 1 Gas Detector Gas Leak Detector for H2S CO LEL O2 Explosion-Proof Gas Sniffer with Audible Visual Alarms 15H Battery for Industrial & Commercial Use
NOYAFA$99.583.9★

4 Gas Meter for Confined Space | USA NIST Calibration | O2 CO H2S LEL
FORENSICS DETECTORS FD$196.384.9★

TopTes Guard-863Pro 4 Gas Monitor Multi Gas Detector for HS CO LEL and O with TFT Color Screen Upgraded O Sensor (5-Year Lifespan) USB Data Export 18h Battery Life Reliable for Work & Home
TOPTES$155.714.5★

4 Gas Monitor | Mini & Small | USA NIST Calibration | O2 CO H2S LEL | USB Recharge |
FORENSICS DETECTORS FD$289.684.9★

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$59.284.6★
What buyers say about gas monitor
What buyers praise and complain about, mined from review topics.What buyers love
“easy to read”
“Work as advertised”
“Nice quality monitor”
“Excellent value”
“no more leaks”
“Came in handy twice helping others”
“This detector works very well”
“Easy to install”
“The rechargeable battery is convenient”
“Portable”
What buyers complain about
“Pin pointed leak”
“could smell it”
“Did not work”
“Stopped working after 6-weeks”
“faulty calibration”
“Beeping sound”
“very large”
“Appeared to be sub-par quality”
“Would not hold a charge for my 12 hour shift”
“But when I tried battery option it doesnt work keep getting beeping alerts”
Top return reasons
Common questions
- Is gas monitor profitable to sell on Amazon United States?
- The niche generates $96K/yr across 23 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is -1.9%. Flapen's verdict: Skip it (39/100).
- How competitive is the gas monitor niche?
- 12 brands and 61 sellers compete. The top 5 products take 56% of clicks and top 5 brands hold 80% of demand.
- What do buyers complain about in gas monitor?
- Top complaints mined from reviews: Leak-Proof, Smell, Functionality-Overall. The return rate is 2.9%.
- What does it cost to enter the gas monitor niche?
- Listings span $21.91–$908.83; the average listing price is $237.95 (sweet spot $15–$100). The average incumbent carries 683 reviews — the moat a new listing must climb.