---
title: "Products — carbon monoxide detectors/smoke alarm - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/carbon-monoxide-detectors-smoke-alarm/products"
last_updated: "2026-08-08T20:56:14.689Z"
locale: en
meta:
  description: "Niche score 54/100 · $1.6M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 54/100 · $1.6M/yr market. Brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Products — carbon monoxide detectors/smoke alarm - Flapen"
---

# **carbon monoxide detectors/smoke alarm**

**Worth a look**

Shows a $1.6M/yr market, but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.

Market size 87Growth 14Conversion 62Competition 75Returns 55Price range 36Avg price 84Brand share 0Review moat 56Quality gap 67

**Market size**

**Great****$1.6M**

$1.6M/yr · 382K searches

**Avg price**

**Great****$74.86**

avg listing price — sweet spot $15–$100

**Competition**

**Great****40%**

top-5 click share — an open shelf

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Good****5.4%**

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

**Review moat**

**Good****1,248.3**

avg incumbent reviews — the moat a new listing must climb

**Returns**

**Good****2.8%**

return rate — above 5% kills the launch gate

**Price range**

**Okay****$16.54–$245.32**

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

**Growth**

**Bad****-22.1%**

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

**Brand share**

**Bad****100%**

top-5 brand share — brand-locked demand

**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Products