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

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

Product ID: 264751751

Details

Alarm
Visual
Brand
A/C Pro
Item weight
9 g
Power source
Corded
Style
Modern

💧4x .25 oz leak detection doses

🔦UV dye for pinpoint leak visibility

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

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Description

💡 Illuminate leaks before they escalate – stay cool, stay ahead!

COMPACT CONVENIENT - Four easy .25 oz applications for multiple uses on the go.
OIL FRIENDLY FORMULA - Safe for all PAG, ester, and mineral-based refrigerant oils.
PRECISION LEAK DETECTION - Spot hidden A/C leaks instantly with UV glow technology.
CERTIFIED QUALITY ASSURANCE - Meets SAE J2297 standards for trusted performance.
UNIVERSAL SYSTEM COMPATIBILITY - Works seamlessly with R-12, R-134a, and R-22 refrigerants.

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

Specifications

ASIN	B008QDXPFK
Alarm	Visual
Best Sellers Rank	#43,745 in Automotive ( See Top 100 in Automotive ) #35 in Automotive AC 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 (1,591)
Global Trade Identification Number	00047876013765, 10047876013762
Item Type Name	Auto A/C Recharge
Item Weight	0.02 Pounds
Manufacturer	InterDynamics
Mfr Part Number	376CS
Model Number	376CS
Number of Items	1
Power Source	Corded Electric
Product Style	Modern
UPC	047876013765
Unit Count	29.57 Milliliters

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