---
title: "Uv Leak Detection Kit — $108K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/uv-leak-detection-kit"
last_updated: "2026-08-09T07:48:01.779Z"
locale: en
meta:
description: "Niche score 50/100 · $108K/yr market · 53K searches/yr · $22.06 avg price. Soft demand (-13.1% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $108K/yr market · 53K searches/yr · $22.06 avg price. Soft demand (-13.1% this quarter) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Uv Leak Detection Kit — $108K/yr Amazon US Niche (2026) - Flapen"
---
# **uv leak detection kit**
**Worth a look**
Shows a sweet-spot price point ($22.06 avg), but soft demand (-13.1% this quarter) keeps it on the watch list.
Market size 26Growth 18Conversion 84Competition 24Returns 78Price range 86Avg price 93Brand share 48Review moat 68Quality gap 60
**Avg price**
**Great****$22.06**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$7.59–$76.35**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****9.3%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.9%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****788.43**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****76%**
top-5 brand share — brands hold most of the demand
**Market size**
**Okay****$108K**
$108K/yr · 53K searches
**Competition**
**Bad****71%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-13.1%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, uv leak detection kit is a $108K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 76% of demand. Demand peaks in Jun–Jul. Verdict: Worth a look — 50/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **uv leak detection kit market data**
- **Units sold / yr**
- **5K–6K**
- avg 250–500/product
- **Revenue / yr**
- **$110K–$132K**
- units × avg price
- **Conversion rate**
- **9.3%**
- **Avg BSR**
- **#62**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **3.2%**
- **Avg brand age**
- **67 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▲rising
**Sellers**
**59**
**Top-5 brand share**
**76%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**19%**
- A/C Pro37% - Vansky16% - Yesibeike11% - REALHUNLEE7% - TSI Supercool5% - Lichamp5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -13.1% search growth over the last 90 days.
1K750Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul · busiest ÷ quietest = 2.3×
[**Open Trend **](https://flapen.com/research/us/automotive/uv-leak-detection-kit/trend)
## **Top uv leak detection kit search terms**
- **uv leak detection kit**10K/yr+32.7%4.6% conv. - **oil dye leak detection kit**7K/yr+6.2%11.1% conv. - **oil leak detection kit**14K/yr-48.1%7.7% conv. - **uv oil leak detection kit**8K/yr-23.8%12.8% conv. - **engine oil leak detection kit**6K/yr+8.8%6.5% conv. - **engine oil dye leak detection kit**6K/yr-24.8%12.0% conv. - **oil leak dye kit**3K/yr+5.6%10.1% conv. [**All search terms **](https://flapen.com/research/us/automotive/uv-leak-detection-kit/search-terms)
## **Top uv leak detection kit products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$11K20%$22K30%$32K40%$43K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal**A/C Pro**$7.59**4.5★2,547 rev](https://www.amazon.com/dp/B002M4G24U) [2**Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses**Vansky**$18.14**4.6★627 rev](https://www.amazon.com/dp/B0CS6M7653) [3**Yesibeike Oil-Based UV Leak Detection Dye 150 ml for Dirty Engine Oil Precision Nozzle Works with Engine Oil ATF Fuel & Hydraulic Systems Low Odor Tamper-Evident Foil Seal**Yesibeike**$14.32**4.1★27 rev](https://www.amazon.com/dp/B0GCB539MF) [4**REALHUNLEE Air Conditioner UV Dye Leak Detector Pro Auto Oil AC UV Dye Leak Test Detection Tool Kit 68 LED A/C UV Flashlight Detector with Protective Glasses**REALHUNLEE**$19.59**4.6★2,570 rev](https://www.amazon.com/dp/B08DVBM9ZF) [5**TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)**TSI Supercool**$24.98**4.6★964 rev](https://www.amazon.com/dp/B008PKWH6C)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**WANJAO 100ML Engine Oil Dye Leak Detection Kit Oil Leak Dye Accurately Locate Leaks Widely Compatible with Two Syringes for Use in Engine Oil Automatic Transmission Fluid Fuel Hydraulic Systems**WANJAO**$13.31**4 rev4mo ago](https://www.amazon.com/dp/B0GR9VWHJW) [**Yesibeike Oil-Based UV Leak Detection Dye 150 ml for Dirty Engine Oil Precision Nozzle Works with Engine Oil ATF Fuel & Hydraulic Systems Low Odor Tamper-Evident Foil Seal**Yesibeike**$14.32**27 rev6mo ago](https://www.amazon.com/dp/B0GCB539MF) [**Vansky Air Conditioner Leak Detection: 100 LED Car AC UV Dye Leak Detector Kit with Protective Glasses - Automotive Professional Tool**Vansky**$21.65**627 rev2y ago](https://www.amazon.com/dp/B0D7HPZH25) [**COSOOS Air Conditioner Leak Detector Tool AC Leak Detector Kit UV Light for AC UV Dye Leak Detection Oil Dye Leak Detector with Protective Glasses**COSOOS**$14.84**262 rev2y ago](https://www.amazon.com/dp/B0D1Y9W96P) [**Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses**Vansky**$18.14**627 rev2y ago](https://www.amazon.com/dp/B0CS6M7653)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**WANJAO 100ML Engine Oil Dye Leak Detection Kit Oil Leak Dye Accurately Locate Leaks Widely Compatible with Two Syringes for Use in Engine Oil Automatic Transmission Fluid Fuel Hydraulic Systems**WANJAO**$13.31**3.2★**▲ 265%**](https://www.amazon.com/dp/B0GR9VWHJW) [**Yesibeike Oil-Based UV Leak Detection Dye 150 ml for Dirty Engine Oil Precision Nozzle Works with Engine Oil ATF Fuel & Hydraulic Systems Low Odor Tamper-Evident Foil Seal**Yesibeike**$14.32**4.1★**▲ 198%**](https://www.amazon.com/dp/B0GCB539MF) [**Certified A/C Pro UV Leak Detection Kit**A/C Pro**$17.84**4.3★**▲ 71%**](https://www.amazon.com/dp/B003JOB594) [**Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses**Vansky**$18.14**4.6★**▲ 62%**](https://www.amazon.com/dp/B0CS6M7653) [**Vansky Air Conditioner Leak Detection: 100 LED Car AC UV Dye Leak Detector Kit with Protective Glasses - Automotive Professional Tool**Vansky**$21.65**4.6★**▲ 38%**](https://www.amazon.com/dp/B0D7HPZH25)
**~~View all trending →~~**
## **What buyers say about uv leak detection kit**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Leak-Proof**24%
*“Helped find a leak”*
**Value For Money**13%
*“Worth every penny”*
**Quality-Overall**12%
*“Build quality of the included accessories is adequate and functional”*
**Advertised Vs Actual Product**11%
*“Works as advertised”*
**Brightness/Shine/Glow**7%
*“made the leak points glow clear as day against all that dark hardware”*
**Efficiency**6%
*“Works perfectly”*
**Ease Of Use**6%
*“Easy to use”*
**Color**5%
*“Nice and bright, shows dye very well”*
**Lubrication**2%
*“Also helps detecting oil level on the front axle with a. YELLOW”*
**Durability**1%
*“I have no fear that it'll break if I drop it”*
### **What buyers complain about **
**Leak-Proof**27%
*“A/c leak”*
**Brightness/Shine/Glow**12%
*“the light always flickers”*
**Ease Of Use**6%
*“It was a bit frustrating to use”*
**Functionality-Overall**5%
*“my bottle definitely did not work or they have batch issues with their product”*
**Quality-Overall**5%
*“Junk”*
**Advertised Vs Actual Product**5%
*“Did not work as advertised”*
**Color**4%
*“2 bottles and the dye is invisible”*
**Size-Overall**3%
*“Don't buy it's to small”*
**Durability**3%
*“Didn't last”*
**Heating**2%
*“the temperature never got high enough to test AC until after return period had passed”*
### **Top return reasons **
**Leak-Proof**21%
**Brightness/Shine/Glow**13%
**Functionality-Overall**12%
**Advertised Vs Actual Product**8%
**Compatibility-Overall**7%
**Color**6%
**Value For Money**6%
**Size-Overall**5%
**Display Colors**3%
**Battery Inclusion**3%
## **Common questions**
- **Is uv leak detection kit profitable to sell on Amazon United States?**
- The niche generates $108K/yr across 14 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is -13.1%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the uv leak detection kit niche?**
- 12 brands and 59 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 76% of demand.
- **What do buyers complain about in uv leak detection kit?**
- Top complaints mined from reviews: Leak-Proof, Brightness/Shine/Glow, Ease Of Use. The return rate is 1.9%.
- **When does demand for uv leak detection kit peak?**
- Demand peaks in Jun–Jul; the busiest month runs 2.3× the quietest.
- **What does it cost to enter the uv leak detection kit niche?**
- Listings span $7.59–$76.35; the average listing price is $22.06 (sweet spot $15–$100). The average incumbent carries 788 reviews — the moat a new listing must climb.
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