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FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump

£8.39

Estimated delivery dates: May 10, 2025 - May 13, 2025
(4 customer reviews)

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FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump £8.39
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Product details

This state-of-the-art smoke tester is your solution for effortless and efficient leak detection. Say goodbye to costly and time-consuming methods – with our smoke leak detector, detecting leaks has never been easier or more accurate!

🔥FOXWELL ST203 Advanced Features

【BUILT IN AIR PUMP】 No air compressor needed. Just connect staright to your vehicle’s 12V battery and generate smoke in seconds!
【Build in Pressure gauge】 to monitor total sytem pressure . Smoke mode to introduce smoke into vehicle system for leak detection.

【 Adjustable Flow Meter】Air Flow meter with ajustable button, easy to control the smoke effect(output flow:<7L/Min)

【Portable & easy to use 】

  • ✅Dual Mode

No need to buy extra air compressor!

  • ✅Air Mode

Air mode can help you test whether there is a leak in the pipe by injecting air into the pipe, and judge by the sound made when the air leaks. Own a S300 air conditioning leak detector, you don’t have to buy additional air compressor or air pump, which makes your diagnosis easy and cost-effective.

  • ✅Smoke Mode

Smoke mode help you lacate the leak accuarately through the visible smoke. The smoke can be produced within seconds, dramatically reducing diagnostic time.

  • ✅BUILT IN AIR PUMP

No air compressor needed. Just connect staright to your vehicle’s 12V battery and generate smoke in seconds!

  • ✅Pressure Gauge 
  1. No Leak: When the value of the pressure gauge remains unchanged, it indicates that there is no leakage in the system.
  2. Small Leak: When the value of the pressure gauge drops, it indicates a small leak in the system.
  3. Massive Leak: When the value of the pressure gauge reaches zero, it indicates a massive leak in the system.
  • ✅Adjustable Flow Meter

Air Flow meter with ajustable button, easy to control the smoke effect(output flow:<7L/Min) 

  • ✅Wide Coverage 

Suitable for all domestic cars, motorcycles, snowmobiles, off-road vehicles, beaches. Cars, light trucks and speedboats, etc. Using together with automotive diagnostic tool, you can find the vehicle problem accurately and diagnose fault.

❓How to do leakage test?

1.Turn OFF the ignition of the vehicle.
LEAK TEST OF VEHICLE SYSTEMS REQUIRES THE ENGINE TO BE OFF
2.Dismantle the air filter and the throttle connections.
3.Clean the inner wall of the intake opening to avoid sharp objects and put the Universal Intake 
Adapter into the opening
4.Connect the Power Cord to 12V vehicle battery.
5.Now the Power LED would be ON, if else check the power supply.
6.Introduce the smoke nozzle into the system via the Adapter Cone
7.Press Air Control Switch, wait for 30 seconds until the system is pressurized, and check the 
Pressure Gauge & Flow Meter reading for leak status, if the unit is equipped with Pressure Gauge & Flow Meter
8.Press Smoke Control Switch, .unplug and Plug back the smoke nozzle back into the Cone Adapter when there’s obvious smoke coming out of the smoke nozzle
9.The system will be ready for leak check in 2 minutes. Use a bright light torch or working lamp to assist
10.After test, press Smoke Control Switch again to stop the unit from generating smoke and 
press Air Control Switch to stop generating pressurized air
11.Collect the Smoke Hose and the Power Cord with the Velcro Straps for storage. Hang the unit or make it stand in UPRIGHT position only. Do NOT lay it down.

🫧Smoke Oil Choose
The equipment is compatible with mineral oil based baby oil like Johnson & Johnson Pink bottle. Pure #5 white oil is the best choice if available.

🚨Caution!!!

1.When you use this FOXWELL ST203 Car Smoke Leak Detector for the first time, fill with 20ml oil . Please be careful NOT to beyond this range. 

2.The testing liquid : both liquid paraffin and baby oil are OK.

3.Fresh oil can be filled with only when the smoke gets thin, and it can’t be filled over 20ml each time.

4.Before filling fresh oil, please pour out the left oil in the detector & replace the detector oil regularly.

5.During the process of leak detection, please keep away from smoke-sensitive parts.

6.Do NOT run the detector over 8 minutes continuously. It needs interval rest.

7.The detector has an intelligent protector, if it exceeds the working limit, such as over 75 ℃, it will automatically turn off the power. In this case, please operate it later. 

8.The round part of this detector has temperature, please be careful to avoid burns.

9.If the test pipe needs to be disconnected in the middle, please secure the other side with a rubber stopple.

10. Please do not fill full the test oil when the test to avoid oil leakage and splashing. Just pour in two thirds of the test oil.

📌Specifications

  • Power source: 12V fully charged vehicle battery
  • Current: 6A
  • Flow rate: < 7 LPM
  • Pressure output: 0.8~1.0 bar

🎁Pakage List
1 x ST203 Automotive Smoke Machine1 x Hook, 1 x Funnel, 1 x Power Cords1 x Inflatable Adapter, 1 x Intake Adapter Cone1 x Cap Stoppers (23pcs), 1 x Air Drum Rubber1 x User Manual

4 reviews for FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump

    FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump photo review
    Adam C.
    March 2, 2025
    The thing I like most about it is that it runs on 6 amps. I can easily use it with a 12 volt power supply in the event I don't want to hook it up to a car battery.It produces a beautiful whispy smoke that points at the leak rather than a fog that just shows a general area.The pressure gauge is a nice touch in the event you just want to pressure check a system. I can even run it without smoke and just see if it holds.It comes with a handful of adapters and plugs to accommodate whatever sized orifice or system.It has a nice metal case, and feels like a well made piece of equipment.Overall a great smoke machine.Highly recommended.
    FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump photo review
    Christopher B.
    February 15, 2025
    Very thick smoke works excellent
    FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump photo review
    Dean M.
    February 11, 2025
    If you work on old cars like I do, this tool is a must to troubleshoot vacuum leaks. Works great and comes with everything needed. Get a DC power support, more convenient than using the cars battery.
    FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump photo review
    FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump photo review
    FOXWELL ST203 Smoke Machine Automotive Vacuum Exhaust Fuel EVAP Leak Detector with Built-in Air Pump photo review
    +1
    Jard S.
    January 11, 2025
    There was at least one intake leak in my cars fuel injection intake system.I had rigged a compressor setup and could hear a leak, but needed to find it.After reading reviews for many smoke machines, I chose the Foxwell unit.It seems that was a good choice, as it works as advertised. The smoke from the intake leak was clearly visible.
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