how is this product installed?

Not sure if you meant used rather than installed. You need a set of A/C gauges. It is a bit tedious to explain. You will on see that on these gauges that you have 3 hoses, 1 goes to high pressure (red), one goes to low pressure (blue) and one goes to the Freon Canister (yellow). You need to pour appropriate amount of dye in the yellow hose before screwing it on the set of gauges (opposite to the end that would go on the Freon canister). Try to find a video on the subject. It will be easier.

After putting it in I don't see any leaks. How long does it take to be able to spot a leak?

Thank you for submitting your question, please be advised that after following the instructions you should notice the leak within a couple of minutes. For any further information please reach out to us on 800-776-1530 or autohelpline@energizer.com to assist you better. A/C Pro Consumer Services. Thank you!

What UV wave length of a light source be the best?

This is the flashlight I purchase for detection https://www.amazon.com/gp/product/B07V5QZDKW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Can i put this on my water reservoir to find a leak in my car cooling system? (not planning to use it on ac)

I would not do it. Use a pressure tester. Pump it up and search. The reason for a dye in your ac system is because its gas that leaks. I have this pressure tester and it is worth the money. All the caps are metal or aluminium. https://www.amazon.com/dp/B08SQ97DGT?ref=ppx_pop_mob_ap_share

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A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye, Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems, 1 Oz

A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye, Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems, 1 Oz

Product ID: 4518057

Details

Alarm
Visual
Brand
A/C Pro
Global Trade Identification Number
Item Weight
9.07 g
Manufacturer
QUEST
Number of Items
1

💧4x .25 oz leak detection doses

🔦UV dye for pinpoint leak visibility

🛠️Universal compatibility with R-12, R-134a, R-22

KD 9.78

Duties & taxes included

In stock

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Description

💡 Don’t let leaks go unseen—shine a light on your A/C’s health!

OIL FRIENDLY FORMULA - Safe for all PAG, ester, and mineral-based refrigerant oils.
MULTIPLE APPLICATIONS - Four convenient .25 oz doses for repeated use or multiple vehicles.
PRECISION LEAK DETECTION - Spot hidden A/C leaks instantly with UV-activated dye.
CERTIFIED QUALITY ASSURANCE - Meets SAE J2297 standards for trusted performance.
UNIVERSAL SYSTEM COMPATIBILITY - Works seamlessly with R-12, R-134a, and R-22 refrigerants.

A/C Pro Certified UV Leak Detector Dye offers four precise .25 oz doses of universal UV dye that detects leaks in R-12, R-134a, and R-22 automotive A/C systems. Compatible with all major refrigerant oils and meeting SAE J2297 standards, it ensures professional-grade leak detection for efficient maintenance and peace of mind.

Specifications

ASIN	B008QDXPFK
Alarm	Visual
Best Sellers Rank	#104,568 in Automotive ( See Top 100 in Automotive ) #38 in Air Conditioning Leak Detection Tools
Brand	A/C Pro
Built-In Media	QUEST Auto A/C Recharge
Customer Reviews	4.6 4.6 out of 5 stars (1,662)
Global Trade Identification Number	00047876013765, 10047876013762
Item Type Name	Auto A/C Recharge
Item Weight	9.07 g
Manufacturer	QUEST
Mfr Part Number	376CS
Model Number	376CS
Number of Items	1
Power Source	Corded Electric
Product Style	Dye
UPC	047876013765
Unit Count	1 Ounce

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