44
gas and carbon monoxide detector
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size
Incredible$4.6M$4.6M/yr · 1.6M searches
Avg price
Incredible$42.66avg listing price — sweet spot $15–$100
Price range
Good$10.06–$124.66cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good6.7%search→purchase rate — share of searches ending in a sale
Returns
Good2.9%return rate — above 5% kills the launch gate
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,284.92avg incumbent reviews — the moat a new listing must climb
Competition
Bad83%top-5 click share — a locked-up shelf
Growth
Bad-27.2%90-day search growth — must beat 0% to launch
Brand share
Bad100%top-5 brand share — brand-locked demand