---
title: "Reviews — gas and carbon monoxide detector - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/gas-and-carbon-monoxide-detector/reviews"
last_updated: "2026-08-09T06:45:20.462Z"
locale: en
meta:
  description: "Niche score 44/100 · $4.6M/yr market · 1.6M searches/yr · $42.66 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 44/100 · $4.6M/yr market · 1.6M searches/yr · $42.66 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Reviews — gas and carbon monoxide detector - Flapen"
---

# **gas and carbon monoxide detector**

**Skip it**

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Market size 97Growth 11Conversion 73Competition 14Returns 52Price range 74Avg price 95Brand share 0Review moat 32Quality gap 35

**Market size**

**Incredible****$4.6M**

$4.6M/yr · 1.6M searches

**Avg price**

**Incredible****$42.66**

avg listing price — sweet spot $15–$100

**Price range**

**Good****$10.06–$124.66**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Conversion**

**Good****6.7%**

search→purchase rate — share of searches ending in a sale

**Returns**

**Good****2.9%**

return rate — above 5% kills the launch gate

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Okay****3,284.92**

avg incumbent reviews — the moat a new listing must climb

**Competition**

**Bad****83%**

top-5 click share — a locked-up shelf

**Growth**

**Bad****-27.2%**

90-day search growth — must beat 0% to launch

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

## Reviews