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 376CS Air Conditioning Universal Dye - 1 oz. Bottle

Interdynamics 376CS Air Conditioning Universal Dye - 1 oz. Bottle

Product ID: 161370984

Details

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

🔧Compatible with R-134a, R-12 & R-22 refrigerants

🧪Universal UV dye for all A/C systems

⚙️Works with PAG, ester & mineral oils

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R471

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Description

🧊 Spot leaks before they spot you—stay cool, stay ahead!

COMPACT EFFICIENT - 1 oz. bottle delivers four precise .25 oz. applications—no waste, no mess.
OIL FRIENDLY FORMULA - Seamlessly works with all PAG, ester, and mineral-based refrigerant oils.
UNIVERSAL COMPATIBILITY - One dye fits all major A/C refrigerants—R-134a, R-12, and R-22.
PRECISION LEAK DETECTION - UV dye highlights leaks instantly for fast, accurate diagnostics.
TRUSTED INDUSTRY STANDARD - Meets SAE J2297 for reliable, professional-grade performance.

Interdynamics 376CS is a professional-grade universal UV dye designed for quick and accurate leak detection in automotive A/C systems. Compatible with all major refrigerants (R-134a, R-12, R-22) and refrigerant oils (PAG, ester, mineral), this 1 oz. bottle provides four precise applications, meeting SAE J2297 standards for dependable performance.

Specifications

ASIN	B008QDXPFK
Alarm	Visual
Best Sellers Rank	#73,115 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #16 in Air Conditioning Tools & Equipment
Brand	A/C Pro
Built-In Media	QUEST Auto A/C Recharge
Country of Origin	USA
Customer Reviews	4.6 out of 5 stars 1,583 Reviews
Global Trade Identification Number	00047876013765, 10047876013762
Item Type Name	Auto A/C Recharge
Item Weight	0.02 Pounds
Manufacturer	QUEST
Mfr Part Number	376CS
Model Number	376CS
Number of Items	1
Power Source	Corded Electric
Product Style	Modern
Style	Modern
UPC	047876013765
Unit Count	1.0 Ounce

Reviews

A**E

Leaks

Works good

4.01.2026

X**S

Cumple su objetivo

El producto cumple su función. Completamente recomendado.

4.09.2025

A**8

Good brand

Good brand but, it was useless for me i couldnt use the product because it's not compatible with AC charging kit's fitting.

29.04.2024

D**D

Very bright

This stuff works! I was able to quickly identify the source of the leak. It shines very brightly under a UV light.

31.10.2025

S**N

couleur

super

1.09.2025

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