Solary SD304 Automotive Leak Detector Tool, DC12V Dual Mode Car EVAP Smoke Machine Leak Tester with Pressure Gauge for All Vehicles

Solary Electricals Barcode: 6971709255814

4.6 / 5.0 based on 5 reviews


[Automotive Smoke Machine SD304] Solary SD304 automotive smoke detector is a professional automotive pipe system leak detection machine that will help you find leaks and fix most general smoke leak problems. Supports various systems of smoke testing, such as EVAP system, exhaust system, intake system, fuel tank system, engine airtightness, various pipe fittings, and so on. Suitable for cars, motorcycles, trucks, off-road vehicles, speedboats, boats, etc

[Dual Mode] The air compressor has air mode and smoke mode, two modes that can be controlled independently. Air mode helps you test whether there is a leak in the pipe by injecting air into the pipe; smoke mode enables you to locate the leak accurately. It can output thick smoke within the 20s after turning on, and thick smoke output detects even the most minor leaks.

[with Pressure Gauge] The smoke tester automotive has a pressure gauge. Observing the pressure gauge lets you determine whether the pipeline leaks more quickly and accurately. Usually, the pressure gauge value continues to rise, indicating no problem with the channel. If the pressure gauge value decreases, Explain that the pipeline leak needs to be repaired.

[Built-in Air Pump] Solary SD304 smoke machine automotive has its own air pump and smoke generator, and there is no need to buy additional air machines. We use high-quality materials, and after many tests, the smoke created by the engine is non-toxic. Don't worry about damage to your body and vehicle; please rest assured to use.

[ Overheating Protection] The vacuum leak smoke machine has an intelligent protector to make it safe. Suppose the system detects that the amount of e-liquid in the instrument is insufficient or the continuous working time is too long. The system is overheated. In that case, the overheating protection indicator ALARM light will light up. The smoke will stop outputting until the temperature drops to the normal range, and the instrument will resume work, ensuring operator and machine safety.


When your car has poor airtightness, it is unable to keep warm, dusty, not soundproof, and not waterproof;

when the air intake system leaks and causes insufficient air intake of the car engine;

The fuel tank system spreads when improper installation causes gaps in the fuel tank and pipeline.

Don't worry; our Solary car smoke leak detector will help you find and solve problems quickly!


Quick Leak Diagnosis


Dual Mode:

Air Mode: Air mode can help you test whether there is a leak in the pipe by injecting air into the line and judging by the sound made when the air leaks.

Smoke Mode: Smoke mode helps you locate the leak accurately through the visible smoke. The smoke can be produced within seconds, dramatically reducing diagnostic time.

Note: Only after the AIR MODE is activated does the smoke mode start working.

Quickly diagnose leaks through the numerical display of the pressure gauge:

No Leak: When the pressure gauge's value remains unchanged, there is no leakage in the system.

Small Leak: When the value of the pressure gauge drops, it indicates a small leak in the system.

Massive Leak: When the value of the pressure gauge reaches zero, it indicates a significant leak in the system.

Operation steps:

1. Pour 20ml of baby oil or mineral oil into the car smoke detector

2. Use the hook to hang the smoke leak detector machine on the car

3. Disconnect the pipe that needs to be connected detector

4. Connect the detector the DC 12V battery and the device starts working

5. The pipes will be filled with smoke, check for leaks

Wide application

Full System Diagnostics, Don't Miss Any Leaks.

EVAP System Test: Leakage of the fuel evaporation system will cause fuel vapor to leak into the atmosphere, causing waste and pollution or unstable engine idling.

Crankcase System Test: Excessive pressure or corrosion of the crankcase is the main reason to damage the seal of the crankcase and cause oil leakage.

Intake System Tset: A leak in the intake system will result in inadequate car engine intake, leading to low performance.

Exhaust System Test: Uncleaned harmful gases escaping into the atmosphere or increasing the noise of the vehicle are the main disadvantages when leaks occur in the exhaust.

Car Sealing Test: Poor sealing of the car can lead to many inconveniences, such as it is not warm and dusty, not soundproof, not waterproof, etc.

Turbo Test: Coolant leakage would cause the engine to report high water temperature.

Various Pipe Fittings Test: Smoke testing of brake hoses, power steering hoses, cooling system hoses, turbocharger hoses, fuel hoses, intake and exhaust system hoses, etc.

Product Specifications

Package Contents

Smart Protection

Product Specifications

Model: SD304

Voltage: DC 12V

Output pressure: 23 Psi

Lost traffic: 10-20L/min

Power supply: 12V car battery

Test oil capacity: 100ml

Dimensions: 150x150x270mm

Host net weight: 3kg

Package Contents:

1 x SD304 Automotive smoke machine

1 x Rubber connector

1 x EVAP dedicated connector

1 x Power cord clip

1 x Standard cone adapter

1 x Universal airbag adapter

1 x Valve core wrench

1 x Test oil refill bottle / 1 x Smoke hose

1 x Hook / 1 Set hard rubber hose plug

Smart Protection

The car smoke machine has a smart protector to make it safe to use, if the system detects that the amount of e-liquid in the instrument is insufficient or the continuous working time is too long, the system is overheated, the overheat protection indicator ALARM light will light up, and the smoke will stop outputting.

Until the temperature drops to the normal range, and the instrument will resume work, ensure operator and machine safety.

Customer Reviews

Based on 5 reviews
Works good but be careful to now overfill

I do like the fact that it contains it's own compressor. Lacks instructions regarding the product itself such as how much oil to add or how much not to add. Believe the other review, it spits a LOT of oil. The company doesn't even list the product on their website.

EDIT: I have updated my original review. What I have found is that as long as you don't fill the the oil past the fill window you're ok and it will not spit a bunch of oil. The manual does not indicate any minimum or maximum fill levels.

Works OVERFILL as it will not work. Read directions on filling and it will work fine

Works well. DO NOT OVERFILL or it will not work. Read directions on how to fill. Worked as directed. I was able to locate leak

Have not used yet

Appears to be a good tool, I’ll let you know when I utilized it.
Update; tested a Chevrolet cruz, found the leak easily, the controls allowed me to regulate the amount of smoke, love it.

Looks like it’ll work great!

Havnt used it on a car yet but did set it up to mess with it. Puts out a good bit of smoke which got thicker the longer it ran. I’m sure this will work great to find leaks. And it uses baby oil instead of expensive smoke oil which I like.

She’s a great smoker

Smoker works excellently; I did have to solder on one of the wires to the pin before I started it. The wire must have broken off during assembly or transportation. After I repaired, I added the juice, turned it on, and a few minutes later…she was blowing smoke! It worked just like it should…. It helped me to determine my suspicions; I had NO LEAKS!