---
title: "Search terms — knock sensor - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/knock-sensor/search-terms"
last_updated: "2026-08-10T23:06:46.065Z"
locale: en
meta:
  description: "Niche score 61/100 · $356K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 61/100 · $356K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Search terms — knock sensor - Flapen"
---

# **knock sensor**

**Worth a look**

Shows a sweet-spot price point ($28.15 avg), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 54Growth 20Conversion 47Competition 90Returns 29Price range 58Avg price 95Brand share 83Review moat 90Quality gap 83

**Avg price**

**Incredible****$28.15**

avg listing price — sweet spot $15–$100

**Competition**

**Great****25%**

top-5 click share — an open shelf

**Review moat**

**Great****199.16**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Great****52%**

top-5 brand share — no brand owns this niche

**Quality gap**

**Great****4.2★**

avg incumbent rating — lower means beatable quality

**Price range**

**Good****$8.18–$153.94**

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

**Market size**

**Good****$356K**

$356K/yr · 337K searches

**Conversion**

**Okay****3.8%**

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

**Returns**

**Okay****4.7%**

return rate — above 5% kills the launch gate

**Growth**

**Bad****-10.3%**

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

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")

## Search terms