--- title: "uv leak detection kit — Niche Verdict: Skip it (42/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/uv-leak-detection-kit" last_updated: "2026-07-10T02:37:35.951Z" locale: en meta: description: "a small market ($108K/yr) — uv leak detection kit doesn't clear our bar today." "og:description": "a small market ($108K/yr) — uv leak detection kit doesn't clear our bar today." "og:title": "uv leak detection kit — Niche Verdict: Skip it (42/100) | Amazon United States - Flapen" --- Back to Flapen home # **uv leak detection kit** **Skip it****42/100 ** a small market ($108K/yr) — uv leak detection kit doesn't clear our bar today. **Market/yr** **$108K** **Growth (1y)** **+148.0%** **Products** **14** **Brands** **12** was 10 a year ago **Sellers** **59** **Price range** **$7.59–$76.35** **Returns** **1.9%** **Rating** **4.4★** **Skip it** Scored 42/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **5** ×0.30 Growth **71** ×0.30 Competition **29** ×0.20 Quality gap **51** ×0.10 Returns **85** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +148.0% year over year. 1K693Spike '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Jun, Jul · busiest ÷ quietest = 2.3× ## **Competition** - A/C Pro37% - Vansky16% - Yesibeike11% - REALHUNLEE7% - TSI Supercool5% - Lichamp5% - Other (6 brands)19% The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack. 12 brands and 59 sellers compete here. **Brands** **12 **▲rising was 10 a year ago **Sellers** **59** **Top 5 brand share** **76%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal](https://m.media-amazon.com/images/I/417SxPtmkkL.jpg) [**A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal**](https://www.amazon.com/dp/B002M4G24U) A/C Pro$7.594.5★2,54734%▼falling 2 ![Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses](https://m.media-amazon.com/images/I/51TnAR9aFLL.jpg) [**Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses**](https://www.amazon.com/dp/B0CS6M7653) Vansky$18.144.6★62713%▲rising 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](https://m.media-amazon.com/images/I/41gWzJ4EYbL.jpg) [**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**](https://www.amazon.com/dp/B0GCB539MF) Yesibeike$14.324.1★2711%▲rising 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](https://m.media-amazon.com/images/I/41kHP7ab8TL.jpg) [**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**](https://www.amazon.com/dp/B08DVBM9ZF) REALHUNLEE$19.594.6★2,5707%▼falling 5 ![TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)](https://m.media-amazon.com/images/I/41TauScdl1L.jpg) [**TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)**](https://www.amazon.com/dp/B008PKWH6C) TSI Supercool$24.984.6★9645%▼falling 6 ![Lichamp AC Leak Detector Kit Automotive UV Oil Dye Leak Detection Kit Includes AC UV Light and Protective Glasses LA01](https://m.media-amazon.com/images/I/41Z8imEoLJL.jpg) [**Lichamp AC Leak Detector Kit Automotive UV Oil Dye Leak Detection Kit Includes AC UV Light and Protective Glasses LA01**](https://www.amazon.com/dp/B0B43333G5) Lichamp$19.004.6★2975%▲rising 7 ![ACDelco 1148963 GM Original Equipment 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz](https://m.media-amazon.com/images/I/21P99GMborS.jpg) [**ACDelco 1148963 GM Original Equipment 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz**](https://www.amazon.com/dp/B008I2VPC4) ACDelco$14.614.6★9504%—flat 8 ![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](https://m.media-amazon.com/images/I/414+jlIAc+L.jpg) [**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**](https://www.amazon.com/dp/B0D1Y9W96P) COSOOS$14.844.5★2624%▼falling 9 ![Leak Detector Kit Fluorescent Protective Glasses Air Conditioning Accurate Leak Detector Kit Tools Car Accessories Replacement Easy to Use Eco Friendly UV Dye(Random)](https://m.media-amazon.com/images/I/41lVsR1BZkL.jpg) [**Leak Detector Kit Fluorescent Protective Glasses Air Conditioning Accurate Leak Detector Kit Tools Car Accessories Replacement Easy to Use Eco Friendly UV Dye(Random)**](https://www.amazon.com/dp/B0B7JCYNLG) Tookie$12.774.2★3513%▲rising 10 ![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](https://m.media-amazon.com/images/I/41s1suqKY9L.jpg) [**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**](https://www.amazon.com/dp/B0GR9VWHJW) WANJAO$13.313.2★43%▲rising 11 ![Certified A/C Pro UV Leak Detection Kit](https://m.media-amazon.com/images/I/41Au4UiruOL.jpg) [**Certified A/C Pro UV Leak Detection Kit**](https://www.amazon.com/dp/B003JOB594) A/C Pro$17.844.3★1,2683%▲rising 12 ![LEAKFINDER LF2008 Automotive Oil-Based Fluid Leak Detection Dye for Oil Fuel ATF and Power Steering Systems 8oz Ultraviolet Fluorescent Dye Twin-Neck Bottle Services up to 8 Vehicles](https://m.media-amazon.com/images/I/41JBfAgXzXL.jpg) [**LEAKFINDER LF2008 Automotive Oil-Based Fluid Leak Detection Dye for Oil Fuel ATF and Power Steering Systems 8oz Ultraviolet Fluorescent Dye Twin-Neck Bottle Services up to 8 Vehicles**](https://www.amazon.com/dp/B07D2MD6N9) LEAKFINDER$33.874.5★1043%—flat 13 ![Vansky Air Conditioner Leak Detection: 100 LED Car AC UV Dye Leak Detector Kit with Protective Glasses - Automotive Professional Tool](https://m.media-amazon.com/images/I/518SmwbAGuL.jpg) [**Vansky Air Conditioner Leak Detection: 100 LED Car AC UV Dye Leak Detector Kit with Protective Glasses - Automotive Professional Tool**](https://www.amazon.com/dp/B0D7HPZH25) Vansky$21.654.6★6273%▲rising 14 ![Mastercool 53351 Professional UV Leak Detection Kit 12V High-Intensity Light Detects A/C Coolant Fuel Oil ATF Leaks Includes Universal Dyes Glasses R134a & R12 Compatible](https://m.media-amazon.com/images/I/51nLhsSwOgL.jpg) [**Mastercool 53351 Professional UV Leak Detection Kit 12V High-Intensity Light Detects A/C Coolant Fuel Oil ATF Leaks Includes Universal Dyes Glasses R134a & R12 Compatible**](https://www.amazon.com/dp/B000IHJXHG) Mastercool$76.354.5★4402%▼falling ## **Product shelf** All 14 tracked products in this niche. Top sellersNewestTrending [![A/C Pro Certified Auto Pro Oil and Fuel System UV Dye Leak Detection for Cars & Trucks & More 1 Oz 374CS Universal](https://m.media-amazon.com/images/I/417SxPtmkkL.jpg)**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 reviews](https://www.amazon.com/dp/B002M4G24U) [![Vansky Air Conditioner Leak Detector: Professional Car Tool 68 LED Automotive AC UV Dye Leak Detection Kit with Protective Glasses](https://m.media-amazon.com/images/I/51TnAR9aFLL.jpg)**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 reviews](https://www.amazon.com/dp/B0CS6M7653) [![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](https://m.media-amazon.com/images/I/41gWzJ4EYbL.jpg)**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 reviews](https://www.amazon.com/dp/B0GCB539MF) [![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](https://m.media-amazon.com/images/I/41kHP7ab8TL.jpg)**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 reviews](https://www.amazon.com/dp/B08DVBM9ZF) [![TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)](https://m.media-amazon.com/images/I/41TauScdl1L.jpg)**TSI Supercool TD8 Total Dye 8 oz (Self Measure Bottle)** TSI Supercool**$24.98**4.6★964 reviews](https://www.amazon.com/dp/B008PKWH6C) [![Lichamp AC Leak Detector Kit Automotive UV Oil Dye Leak Detection Kit Includes AC UV Light and Protective Glasses LA01](https://m.media-amazon.com/images/I/41Z8imEoLJL.jpg)**Lichamp AC Leak Detector Kit Automotive UV Oil Dye Leak Detection Kit Includes AC UV Light and Protective Glasses LA01** Lichamp**$19.00**4.6★297 reviews](https://www.amazon.com/dp/B0B43333G5) [![ACDelco 1148963 GM Original Equipment 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz](https://m.media-amazon.com/images/I/21P99GMborS.jpg)**ACDelco 1148963 GM Original Equipment 10-5045 Multi-Purpose Fluorescent Leak Detection Dye - 1 oz** ACDelco**$14.61**4.6★950 reviews](https://www.amazon.com/dp/B008I2VPC4) [![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](https://m.media-amazon.com/images/I/414+jlIAc+L.jpg)**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**4.5★262 reviews](https://www.amazon.com/dp/B0D1Y9W96P) ## **Reviews** 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-Proof21% - Brightness/Shine/Glow13% - Functionality-Overall12% - Advertised Vs Actual Product8% - Compatibility-Overall7% - Color6% - Value For Money6% - Size-Overall5% - Display Colors3% - Battery Inclusion3%