45
water leak detector
Skip itA small market ($61K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible£31.77avg listing price — sweet spot $15–$100
Price range
Great£7.00–£120.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Review moat
Good830.04avg incumbent reviews — the moat a new listing must climb
Returns
Good2.5%return rate — above 5% kills the launch gate
Brand share
Okay75%top-5 brand share — brands hold most of the demand
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Growth
Bad-15.9%90-day search growth — must beat 0% to launch
Market size
Bad£61K£61K/yr · 78K searches
Signals Low Review Barrier