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o2 sensor
Worth a lookShows a $3.5M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size
Incredible$3.5M$3.5M/yr · 3.9M searches
Avg price
Incredible$36.54avg listing price — sweet spot $15–$100
Price range
Great$9.70–$70.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Great30%top-5 click share — an open shelf
Brand share
Great50%top-5 brand share — no brand owns this niche
Quality gap
Great4.2★avg incumbent rating — lower means beatable quality
Returns
Good2.1%return rate — above 6% kills the launch gate
Conversion
Okay2.5%search→purchase rate — share of searches ending in a sale
Review moat
Bad6,804.69avg incumbent reviews — the moat a new listing must climb
Growth
Bad-15.5%90-day search growth — must beat 0% to launch