How long should i keep the engine running for UV dye to show up? And do i have to rev it or just idle it?

Since I used the fluorescent dye to detect leaks from the power-steering system I had to drive my car around for approx 15 mins to actually see where it was leaking from. At idle I couldn't see any leaks. After the drive the leak was pretty obvious and the UV light picked it up right away.

are glasses included?

Yes. They are an amber/yellow color

Can the kit be used to identify transmission leaks?

transmission leak should b readily identifiable by the red tint already in the fluid to b sure either water blast or at least hose off under hood all oils and then get on fairly clean surface to see if red oil shows up keep in mind u could have more than one leak and some people will put trans fluid in power steering complicating matters

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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

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

Product ID: 3605817

🔦50W high-intensity UV light

🧪Universal fluorescent dye for 10+ applications

🛠️R134a & R12 system compatibility

€ 221.44

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Description

🔍 Illuminate leaks like a pro — don’t let hidden drips cost you!

SEAMLESS COMPATIBILITY - Works effortlessly with both modern R134a and legacy R12 refrigerant systems for all your service needs.
TRUSTED MASTERCOOL RELIABILITY - Backed by U.S.-based support and built for durability, this kit is the go-to for serious technicians.
COMPLETE PRO KIT IN A RUGGED CASE - Everything you need—dyes, remover, safety glasses, labels—organized and ready for on-the-go professionals.
PINPOINT PRECISION LEAK DETECTION - 50-watt UV light reveals hidden leaks in A/C, coolant, fuel, oil, and ATF systems with laser focus.
UNIVERSAL DYE FOR MAXIMUM COVERAGE - Includes oil and coolant fluorescent dyes, ensuring versatile diagnostics across multiple vehicle systems.

The Mastercool 53351 Professional UV Leak Detection Kit is a comprehensive, portable solution designed for automotive and HVAC technicians. Featuring a powerful 50W 12V UV light, universal fluorescent dyes for oil and coolant, and compatibility with both R134a and R12 refrigerants, it enables precise detection of leaks in multiple fluid systems. Packaged with essential accessories and housed in a rugged carry case, this kit combines professional-grade performance with convenience and trusted Mastercool support.

Specifications

ASIN	B000IHJXHG
Best Sellers Rank	#207,117 in Automotive ( See Top 100 in Automotive ) #62 in Air Conditioning Leak Detection Tools
Brand	Mastercool
Customer Reviews	4.5 4.5 out of 5 stars (441)
Date First Available	March 1, 2008
Item Weight	2.2 pounds
Item model number	53351-B
Manufacturer	Mastercool
Manufacturer Part Number	53351-B
Model	Professional UV Leak Detector Kit
Product Dimensions	9.75 x 6.75 x 3.25 inches

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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€ 221.44

Duties & taxes included

In stock

Sold byAmazon CyprusDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cyprus.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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