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water flow sensor
Skip itPrices mostly outside the sweet spot ($8.93–$537.26) — this niche doesn't clear our bar today.
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Good550.5avg incumbent reviews — the moat a new listing must climb
Avg price
Good$129.43avg listing price — sweet spot $15–$100
Brand share
Good72%top-5 brand share — brands hold most of the demand
Competition
Okay66%top-5 click share — leaders hold, buyers still browse
Market size
Okay$121K$121K/yr · 42K searches
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Growth
Bad-4.7%90-day search growth — must beat 0% to launch
Returns
Bad7.1%return rate — above 5% kills the launch gate
Price range
Bad$8.93–$537.26cheapest to priciest tracked listing — scored on the share inside $15–$100