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Key Features1. Built-in air pump, 0.8-1.0Bar stable test pressure, ideal for field roadside repair2. Dual meter design (pressure gauge + flow meter) to judge leak severity clearly3. Intelligent overheat protection auto power off at 75℃, support -20℃ low-temperature operation4. Non-corrosive mineral oil smoke, safe for all rubber hoses, sensors and plastic parts5. Heavy-duty all-metal housing, anti-oil and anti-collision, compact with hanging hook design6. Single-button control for easy operation, friendly for new technicians7. Full-system detection: EVAP, intake vacuum, turbo, crankcase, exhaust, fuel tank, cooling pipe8. Complete accessory kit with EVAP adapter, block caps, intake bladder, cone connectors for all vehicle models
ANCEL S300 Automotive Smoke Machine with Built-in Air Pump and Pressure Gauge Flow Gauge,Dual Mode Evap Smoke Leak Tester,Auto Smoke Machine Leak Detector Tools Kit
Overview
1. Built-in air pump, 0.8-1.0Bar stable test pressure, ideal for field roadside repair
2. Dual meter design (pressure gauge + flow meter) to judge leak severity clearly
3. Intelligent overheat protection auto power off at 75℃, support -20℃ low-temperature operation
4. Non-corrosive mineral oil smoke, safe for all rubber hoses, sensors and plastic parts
5. Heavy-duty all-metal housing, anti-oil and anti-collision, compact with hanging hook design
6. Single-button control for easy operation, friendly for new technicians
7. Full-system detection: EVAP, intake vacuum, turbo, crankcase, exhaust, fuel tank, cooling pipe
8. Complete accessory kit with EVAP adapter, block caps, intake bladder, cone connectors for all vehicle models
ANCEL S300 Key Features
【✅Built-In Air Pump】The ANCEL S300 EVAP smoke machine is a fantastic tool for diagnosing EVAP leaks in vehicles.The built-in compressor is a fantastic feature that sets this leak detector apart from others on the market.so you don\'t have to drag around a shop air hose
【✅Adjustable Flow Gauge】+【✅Precised Pressure Gauge】Thanks to the adjustable air flowmeter you can control the amount of smoke being produced. ANCEL S300 automotive smoke tester also includes a pressure gauge that shows the pressure in the fuel system, also allowing you toaccurately diagnose problems.
【✅Air Mode】+【✅Smoke Mode】ANCEL S300 smoke machine for cars has a dual mode design(air mode and smoke mode),so these enable you to detect leaks precisely and fastly.Auto smoke tester also supports pressure decay test, identifying tiny leaks by applying specific pressure and monitoring the gauge, especially useful for hard-to-spot leaks.
【✅Intelligent Protector】Auto smoke machine leak detector has an intelligent protection device that automatically cuts off power if the operating temperature exceeds the limit to ensure the safety of the operator and the smoke machine. The smoke tester uses baby oil to produce harmless smoke and is ideal for leak detection in all vehicles.
【✅Detect Every Type of Leak】The S300 automotive smoke leak detector is able to pinpoint intake, exhaust, and other EVAP leaks in minutes. The ANCEL S300 is the most versatile smoke machine on the market, providing you with the tools you need to efficiently detect and repair leaks in automotive systems. Essential tool for diyers and shop repair.
【🎁Free Accessories Valued At Over $100】Pay for an ANCEL S300 smoke machine automotive, you will get adjustable intake bladder, adapter cone, funnel, block-cap set and other diagnostic detector tool
Full-system Test
EVAP System Test
Intake System Test
Exhaust Systems Test
Crankcase system test
Car Sealing Test
Fuel Tank System Test
Turbo System Test
Various Pipe Fittings Test
2 kinds of modes: AIR model+Smoke mode
Air mode :First, use the air mode to directly measure the leak, and judge whether there is a leak by the pressure gauge value. If it is less than 0.5bar, it will inevitably leak. If it reaches 0.8bar and above, the pipeline tightness is very good.Then there is no need to waste baby oil
SMOKE MODE:After the air mode determines that there is a leak, use the smoke mode to find the leak.
How to judge leakage- through the pressure gauge?
NO Leak: When the value of the pressure gauge remains unchanged and the flow meter will read zero (ball at bottom of scale), it means that there is no leakage in the system.
Small Leak: When the value of the pressure gauge drops and the ball in the flow meter slowly fall to the bottom of the scale, it indicates a small leak in the system.
Massive Leak: When the value of the pressure gauge reaches zero and the flow meter ball never falls to the bottom of the scale, it indicates a large leak in the system.
Overheat & Anti-frost Protection
Overheat Protection
When the temperature of the device exceeds 75℃, power protection will be intelligently activated to turn it off.
Anti-frost Protection
The device can also work normally at -20℃.
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.
Caution:
1.When you use this Ancel S300 Car Smoke Leak Detector for the first time, fill with 10-20ml 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.
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.
Specification
- Power Supply: DC 12V Vehicle Battery
- Working Current: 6A
- Output Pressure: 0.8~1.0 Bar
- Smoke Flow: ≤6 LPM Adjustable
- Overheat Protection: Auto cut off at 75℃
- Working Temp: -20℃ ~ +60℃
- Oil Capacity per Test: 20ml
- Body Material: Thick Metal Shell
Package List
PaymentShipping & Returns & RefundsTerms of salesAbout usContact usPaymentWe only accept official payment methods. Please complete payment promptly. Unpaid orders will be canceled automatically to restock inventory. All refunds will be processed via the original payment method.
Shipping & Returns & RefundsOrders will be shipped within 1–3 business days after payment is confirmed. Tracking information will be uploaded timely. Shipping service is fully trackable. We will assist buyers with claims for lost, damaged or delayed parcels. Item condition and quantity are confirmed correct upon buyer’s signature receipt.1) We offer a 30-60 day return window per Money Back Guarantee policy. 2) Seller’s fault : full refund with seller covering all shipping fees. 3) Returned items must be in original condition, complete with original packaging and accessories, unused and resellable. Otherwise, refund may be declined.4) Refund will be issued within 3 business days after we receive and inspect your return. Terms of sales
All transactions are subject to the latest official policies. Disputes are preferred to be resolved via friendly negotiation, and both parties agree to ’s final judgment.
About us
ANCEL was founded in 2013, born from a simple yet steadfast idea:
to enable every car owner, automotive enthusiast, and professional mechanic to quickly and accurately understand their vehicle’s condition, without being held back by complex automotive diagnostic technology.
We believe that automotive diagnostics shouldn’t be limited to professional repair shops.
Starting with our first OBD2 scan tool, we have evolved into a full-range brand, with products spanning automotive diagnostics, battery testing, heavy-duty truck scanners, motorcycle fault code readers, and comprehensive vehicle maintenance solutions.
Everything we build stems from real-world repair scenarios. Every software update, hardware upgrade and user interface tweak is designed to cut down guesswork and give drivers full visibility into their vehicle’s health. For years, we’ve served automotive communities across North America with consistent, precise diagnostic equipment that balances powerful professional functionality with simple, easy-to-navigate operation.At ANCEL, our promise is simple: take the stress out of car troubleshooting, so you can hit the road with total confidence.Contact us
Our customer-oriented service strives for positive responses with all 5 star selling ratings.
Please feel free to contact us via message once you have any question before you giving us negative response or open case.
We will reply in 24 business hours.
Business time: GMT8 (9:00-18:00) from Monday to Friday.
On Sep 23, 2026 at 20:41:19 PDT, seller added the following information:
