FOXWELL SD203 Automotive Smoke Machine with Pressure Gauge & Flow Meter, All Systems EVAP Vacuum Leak Detector
FOXWELL SD203 Automotive Smoke Machine with Pressure Gauge & Flow Meter, All Systems EVAP Vacuum Leak Detector
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FOXWELL SD203 Automotive Smoke Machine with Pressure Gauge & Flow Meter, All Systems EVAP Vacuum Leak Detector

|23 ratings

Key item features

  • Dual Functionality: Features both Air Mode for quick leak detection and Smoke Mode for precise tracing of smaller issues in various vehicle systems.
  • Integrated Pump: Equipped with a built-in air pump, eliminating the need for an external compressor and generating dense smoke in 10 seconds.
  • Adjustable Monitoring: Includes a real-time pressure gauge and an adjustable flow meter (output flow: <7L/Min) for precise control and leak assessment.
  • Extensive Compatibility: Suitable for all 12V domestic cars, motorcycles, snowmobiles, off-road vehicles, light trucks, and speedboats.
  • Extended Operation: Offers a 10-minute work cycle, double the industry standard, with smart thermal control for quick restarts during longer diagnostic jobs.
  • Comprehensive Adapters: Comes with 23 stoppers, a cone adapter, and an inflatable bladder to seal EVAP, intake, turbo, and exhaust systems.
  • Efficient Design: Operates on a 12V battery, consumes only 3ml of smoke oil per 10 minutes, and has a visible fluid level mark to prevent overfilling.
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Specs

Brand, FoxwellCompatible cars, carsVehicle fitment type, UniversalVehicle type, CarFeatures, AdjustableModel, SD203

About this item

Product details

💨Quick Leak Diagnosis
The FOXWELL SD203 automotive smoke tester is designed for all 12V vehicles, including cars, minivans, and light-duty trucks. It delivers thorough leak detection across critical systems such as EVAP, Emission, EGR, vacuum, engine, intake, exhaust, fuel tank, turbo, and more—ensuring your vehicle maintains peak performance and safety.

👍Efficiently Save Time & Safety
With a 10-minute work cycle—double the industry standard—the SD203 car smoke detector extends your testing capabilities. Its unique variable frequency technology ensures continuous operation, even under high temperatures. The patented smoke generation system reduces power consumption by over 30% and temperature rise by more than 40%, using just 3ml of smoke oil per 10 minutes, protecting your car battery and maintaining safe temperatures during tests.

💥Dual Modes for Precision & Efficiency
Quickly identify potential leaks in Air Mode, which allows for fast detection of smoke-sensitive components. For more precise pinpointing, switch to Smoke Mode to reveal hidden leaks with visible smoke. This dual-mode feature improves testing efficiency and reduces smoke oil consumption.

☄️Integrated Air Compressor
The SD203 eliminates the need for expensive external compressors with its built-in high-performance motor. It operates within a pressure range of 0.8 to 1.2 bar and delivers a smoke output of 16L/min, enabling you to perform tests anywhere. Save on setup costs while enjoying a reliable, portable solution.

📈Real-Time Pressure & Flow Adjustments
The built-in pressure gauge and flow meter allow real-time monitoring of leaks, ensuring even the smallest issues are detected accurately. Adjust the smoke output easily with the precision knob to tailor testing conditions for maximum efficiency.

✨Perfect Testing Solutions
Test a wide range of vehicles, from cars and motorcycles to trucks, ATVs, boats, RVs, and more. The smoke tester comes with practical accessories, including intake adapter cones, air drum rubber, and 23 full-size cap plugs, ensuring a perfect seal for every test.


🌈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.


⭐Specifications

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

 

  • ❣️【Dual Mode】: No need to buy extra air compressor! Air for Speed, Smoke for Precision] Use Air Mode to spot large leaks in seconds, then switch to Smoke Mode to trace smaller issues in EVAP, intake, or vacuum systems. One tool, two functions—no need for a separate tester.
  • 🔥【Built-In Air Pump】: No air compressor needed. Just connect staright to your vehicle's 12V battery and generate. The SD203 has an integrated air pump that produces dense smoke in just 10 seconds. Weighing only 5.5 lbs and featuring one-button operation, it's perfect for both DIYers and shop use.
  • 🌡️【Adjustable Flow Mete】: Air Flow meter with ajustable button, easy to control the smoke effect(output flow:<7L/Min). A real-time pressure gauge and adjustable flow meter show you exactly how bad a leak is.
  • 🚗【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.
  • 💨【Quick Restart】: While other units overheat in 5 minutes, the SD203 runs for a full 10 minutes. Smart thermal control pauses automatically, then lets you resume instantly no waiting. Ideal for longer diagnostic jobs.
  • 📦【23 Adapters Included】: Includes 23 stoppers, a cone adapter, and an inflatable bladder for sealing EVAP, intake, turbo, and exhaust systems. Works with most cars, SUVs, vans, and light-duty trucks, no extra adapters needed.
  • 👍【Easy to Use】: Just add smoke fluid (not included), connect to a 12V power source, and go. A visible fluid level mark prevents overfilling for safe, clean operation. Fast, pro-level diagnostics with no extra tools required.
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Specifications

Brand

Foxwell

Compatible cars

cars

Vehicle fitment type

Universal

Vehicle type

Car

Warranty

Warranty information

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Customer ratings & reviews

4.6 out of 5 stars
stars
23 ratings11 reviews
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Showing 1-3 of 11 reviews

Aug 1, 2026
Reviewer name: Joe
Item details
Size: SD203
Sold byFOXWELL OFFICAL STOREDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Good diagnostic tool

The product served me well. A sample of their smoke oil would have been nice to try, but the baby oil worked well.

Helpful?74Z4W4R7OXJ95257750923
Jul 3, 2025
Reviewer name: francisco
Item details
Size: SD203
Sold byFOXWELL OFFICAL STOREDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

just use baby oil

good machine, found a leak on manifold really quick, just using baby oil to smoke ... and it can be used to detect coolant leak too... just blow air to the system with the bladder that s the idea, you figure it out...over all very satasfied with this product

Incentivized Review
Helpful?74Z4W4R7OXJ95257750923
Dec 20, 2025
Reviewer name: PERRY
Item details
Size: SD203
Sold byFOXWELL OFFICAL STOREDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

small smoke machine

all you need is plain old baby oil -worked great!

Incentivized Review
Helpful?74Z4W4R7OXJ95257750923
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