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Availability:
Only 8 left in stock, order soon!
Arrives
Monday, Aug 31
Color: Shop Series - Built-in Air Pump
Features
- ST201 | Quick Overview Built-in Air Pump No external compressor needed, plug directly into your 12V battery and start testing. Finds Leaks on EVAP, Intake, Exhaust, Vacuum & Fuel Systems Inject visible smoke to pinpoint leaks in minutes. 10-Min Test No Cooldown Wait Runs longer than basic testers. Press restart and keep going no downtime. 11.6-17.4 PSI (0.8-1.2 Bar) Pressure Range Safe for EVAP, intake, exhaust, vacuum, and fuel systems without damaging seals or sensors. Low Oil Consumption Uses only ~3ml per test, up to 50% less than ordinary machines. Complete Kit Ready to use out of the box.
- Why ST201 Stands Out Better Than Ordinary TestersUnlike basic smoke machines that run only 5 minutes and require cooldown, ST201 runs 10 minutes and restarts instantly for 20+ minutes of continuous testing. No external compressor needed built-in air pump handles it all. Covers EVAP, intake, exhaust, vacuum, and fuel systems on most 12V gas and diesel vehicles.
- Pinpoint Leaks Fast Solve Real ProblemsCheck Engine light on? Rough idle? Failed emissions test? Poor gas mileage? Hesitation on acceleration? These are often caused by hidden leaks in EVAP, vacuum, or intake systems. ST201 injects visible smoke into sealed systems you'll see exactly where air is escaping in minutes. No more guessing or throwing parts at the problem. Fix it right the first time.
- 10-Minute Test No Cooldown, Keep WorkingST201 runs a full 10-minute test cycle twice as long as basic 5-minute testers. Press restart to start another cycle immediately. No waiting for cooldown. Inverter technology prevents overheating and keeps you diagnosing without interruption. Ideal for shops handling multiple vehicles or deep system checks.
- Low Oil, Cool Operation, Ready to GoAdvanced smoke generation technology uses only ~3ml of smoke oil per 10-minute test up to 50% less than ordinary machines. Runs 40% cooler and draws 30% less power. Complete kit includes smoke tube, power cords, adapters, funnel, hook, and user manual just add smoke oil and start finding leaks.
Description
17 years of smoke tech evolution. Every year, we make it better. FOXWELL – built to last, updated to lead.
Manufacturer: FOXWELL
Brand: FOXWELL
Model: Foxwell ST201 Smoke Tester Automotive
Item Weight: 4.09 pounds
Product Dimensions: 4.13 x 4.13 x 6.77 inches
Item model number: Foxwell ST201 Smoke Machine for Cars
Manufacturer Part Number: FOXWELL ST201
Date First Available: October 31, 2023
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Aug 31
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Shop Series - Built-in Air Pump
Super cool and extremely effective.. This is so inexpensive to have laying around when you need it.. I find it very useful in detecting ANY leaks in Exhaust and intakes, Vacuum lines, AC ducts, you name it. You'll find a dozen reasons to use it all around the house. I showed it in a Facebook post and Nobody knew what it was, Everyone thought it was an awesome diagnostic tool.
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Reviewed in the United States on April 24, 2026 by Bob Enos
Color: Shop Series - Built-in Air Pump
Buy this if you work on your own vehicles. Great value a land easy to use. It works great for finding leaks of any kind. I have used it multiple times I even had a hood slammed on it and it still works great. It will save you time and money for sure
Reviewed in the United States on December 10, 2025 by Ben Holmes
Color: Shop Series - Built-in Air Pump
Hot dang, this here car smoker’s a real ripper! It’s puffin’ out smoke like a chimney on a cold mornin’, rootin’ out them sneaky leaks in yer car’s hoses faster’n a coon dog chasin’ a squirrel! Simple as a sack o’ taters, and it’ll sniff out every dang hole for ya.. yeehaw, this thing’s the cat’s pajamas!
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Reviewed in the United States on July 22, 2025 by Ammar
Color: Shop Series - Built-in Air Pump
Product worked great and worked fast, very easy set up and if you had a leak you would know immediately. The only thing is the I though was a downside was you have to go to the store and buy mineral oil, and it doesnt mention if it has included but, the product itself was excellent and worked great.
Reviewed in the United States on March 30, 2026 by Hector Corral Jr
Color: Shop Series - Built-in Air Pump
I purchased last year but didn't end up using at that time due to change in plans, unfortunately today I had a need/use for it , only to find that it doesn't work right out of the box ? apparently I should have tried it out at the time I received it! Oh well , to late now , another piece of amazon garbage !
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Reviewed in the United States on November 8, 2024 by Amazon Customer
Color: Shop Series - Built-in Air Pump
Easy to use with either baby oil or smoke liquid. Quickly produces smoke and has enough pressure to drive the smoke the entire length of the car in only 20-30 seconds. Able to identify the evap leak in under two minutes, which because of the location I likely would never have found via only a visual inspection.
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Reviewed in the United States on November 3, 2025 by Bluto
Color: Shop Series - Built-in Air Pump
I have used it exactly twice and both times it did exactly what I needed it to. It will generate smoke that lingers and if you correctly plug up the obvious vacuum ports on your intake and feed the smoke in, then that smoke is going to come out all the non-obvious places. I was a little disconcerted to see smoke come out of the bearings for the throttle shaft, but that will indeed happen if you leave it long enough to build up positive pressure in the manifold because I managed to plug up all the actual leaks. So be sure to use common sense while interpreting your results. -CTH
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Reviewed in the United States on July 10, 2024 by cth350
Color: Shop Series - Built-in Air Pump
I was having codes P0172 and P006A, and suspected a leak somewhere. I had never used a smoke machine before, but this little unit made it easy. It took a minute or so, but sure enough smoke came wafting up from behind the bumper. I had to take off the bumper to see the problem… the nuts securing the piping from the turbocharger to the intercooler had worked loose. Easy fix, but you have to know where to look. This machine did the trick. Highly recommend, and a great value. Very easy to set up and use. Only ding is the poor English in the user’s manual, but the info you need is there and clear enough.
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Reviewed in the United States on February 3, 2024 by Dave R