
PRODUCT HIGHLIGHTSNo need for an external air pump, integrated air compressor design, plug and play, easy to use and carry, no need to purchase additional accessories, save your cost and operation time.
0.8-1.2 bar adjustable pressure output, 16 L/Min flow rate, perfectly matches the pressure requirements of most automotive systems, suitable for various pipeline leak detection scenarios.
Supports EVAP system test, EGR valve test, intake system test, fuel tank test, exhaust system test, various pipe fittings test, car sealing test, solves 60% of engine fault code problems caused by pipeline leaks.
Adjustable smoke size design, you can control the smoke output according to different test scenarios, quickly and accurately locate the tiny leak point, is a great helper for car repair shops and DIY users.
Fits all 12V battery vehicles, including cars, motorcycles, ATVs, light trucks, pickup trucks, snowmobiles, beach bikes, speedboats, heavy-duty trucks, widely used in auto repair workshops and personal DIY maintenance.
Using the visibility of smoke, it can perform leak detection on the whole set of pipelines, visual operation, omni-directional, no dead angle, no missing any tiny leak point, accurate and efficient.
No need to start the engine during use, find the leak point by simulating the real-time working condition of the engine when it is static. It is very safe for people and vehicles, effectively avoiding safety accidents during maintenance.
Quickly and accurately determine whether the fault is caused by pipeline leakage, and locate the leak point in 3 minutes. Effectively improve the speed of vehicle maintenance, improve workshop station utilization and personnel efficiency, and increase productivity.


60% of engine fault codes are related to pipeline leaks. When the sensor detects that the relevant value exceeds the standard range, the ECU will store the corresponding fault code and trigger the engine fault light. FOXWELL SD201 smoke leak detector can help you quickly find the leak point, solve the fault root cause, clear the fault code, and avoid repeated maintenance.
Solve the engine fault light, EVAP system fault codes (P0443-P0457/P0465-P0469), check engine light caused by pipeline leaks, avoid failed smog inspection.
Accurately locate the leak point of the oil circuit and cooling system pipeline, solve the problem of frequent oil and coolant consumption caused by pipeline leakage, avoid engine damage caused by lack of oil and coolant.
Detect intake system and exhaust system leaks, solve the problems of engine underpower, idle jitter, overheating and high fuel consumption caused by vacuum leaks, restore engine power and fuel efficiency.
Locate the leak point of the fuel system, exhaust system and body sealing, solve the problem of peculiar smell in the car, abnormal fluid spots under the car, and ensure driving safety.

FOXWELL SD201 automotive smoke leak detector is suitable for all pipeline system leak detection of 12V vehicles, it can test all sealed pipeline systems of the vehicle, help you complete comprehensive leak detection, and solve various fault problems caused by pipeline leaks. It is compatible with American cars after 1996 and European cars after 2000 with EVAP service port.
Test the fuel evaporative emission system, locate the leak point of the EVAP pipeline, carbon canister and solenoid valve, solve various EVAP related fault codes, help you pass the smog inspection easily.
Detect intake manifold, throttle body, intercooler and vacuum pipeline leaks, solve engine idle jitter, underpower, high fuel consumption caused by intake vacuum leaks, restore engine performance.
Locate exhaust manifold, catalytic converter, muffler and exhaust pipe leaks, solve exhaust noise, peculiar smell and emission exceeding standard problems, ensure the exhaust system works properly.
Test EGR valve and pipeline leaks, fuel tank, fuel line and fuel pump sealing, solve fuel leakage, EGR system fault codes, ensure fuel system safety and engine emission compliance.
Suitable for various oil circuit, water circuit, air conditioning pipeline, turbocharger pipeline, brake system pipeline leak detection, full coverage of vehicle sealed pipeline systems.
Test the sealing of the car body, door, window, sunroof and cockpit, solve the problem of water leakage, air leakage and wind noise during driving, improve driving comfort.



Unlike other smoke machines that require an external air pump, FOXWELL SD201 has a built-in high-performance air compressor, no need to purchase additional air pumps, which saves you more than $50 in accessory costs. The integrated design makes it more portable and easy to use, plug and play, no complicated assembly required, suitable for both workshop fixed use and outdoor emergency maintenance.
FOXWELL SD201 is designed with adjustable smoke size, you can freely adjust the smoke output according to the size of the test pipeline and the severity of the leak, which can quickly locate the tiny leak point and avoid excessive smoke affecting the observation. The device does not need to start the engine during operation, it simulates the working pressure of the engine in a static state, which is 100% safe for the vehicle's electronic system and the operator, avoiding the risk of high temperature and high pressure during engine operation.
The FOXWELL SD201 automotive smoke leak detector is suitable for all 12V battery vehicles and equipment, including:


FOXWELL SD201 is easy to operate, even for novice DIY users can quickly get started. Under the premise of accurate sealing, the pipeline can be filled with smoke in about 1 minute, and the leak point can be observed within 3 minutes.
Inject 10ml-20ml of test oil into the smoke leak detector (baby oil is recommended). 20ML of test fluid can be used continuously for about 10 minutes under standard working conditions.
Disconnect the pipeline that needs to be tested for leaks, select the appropriate adapter from the kit, and prepare for the connection of the smoke machine.
Install the airbag adapter into the sealed pipeline, connect the device to the smoke conduit, and ensure that all connections are well sealed to avoid secondary leaks.
Connect the leak detector to the DC 12V vehicle battery: red clamp to the positive terminal (+), black clamp to the negative terminal (-), the device will start working when powered on.
The device will start to produce smoke, and the smoke will be delivered into the test pipeline. The pipeline can be filled with smoke in about 1 minute under accurate sealing conditions.
Observe the pipeline for smoke overflow, the position where smoke escapes is the leak point. You can adjust the smoke size to locate tiny leaks, and the test results can be observed within 3 minutes.

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Ship from USA local warehouse, fast shipping and reliable logistics service, deliver to your door quickly.
We provide 2 year product warranty, 30-day money-back guarantee, hassle-free after-sales service.
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