AUTOOL SDT203 EVAP Smoke Leak Detector with Internal Pump for Automotive Diagnostics

The AUTOOL SDT203 is a professional-grade smoke leak detector designed to locate leaks in EVAP, vacuum, intake, and exhaust systems with speed and accuracy. Featuring a built-in air pump, this compact fog machine only requires a 12V battery connection and 10–15 ml of baby oil or paraffin to produce dense diagnostic smoke in seconds. The unit includes a visible flow gauge, automatic overheating protection, and durable cold-weather performance. Ideal for workshops, garages, and mobile mechanics.

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Key Features

• Built-in air pump – no external compressor needed

• Produces thick smoke within 30 seconds

• Clear flow meter to observe pressure output and leak severity

• Intelligent auto shut-off at 75 °C for safety

• Operates in sub-zero environments (down to -20 °C)

• Requires only 12V DC and 10–15 ml of oil

• Works with baby oil or liquid paraffin

• Fast diagnosis of EVAP, vacuum, turbo, and exhaust leaks

• Compact, portable, and workshop-ready

• 3-year product warranty

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Use Cases

• Locate EVAP system leaks that trigger engine warning lights

• Find vacuum leaks causing idle or performance issues

• Detect turbo boost pressure loss

• Verify repairs to intake or exhaust systems

• Ideal for use on vehicles, motorcycles, light trucks, and boats

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How To Use

1. Add 10–15 ml of baby oil or paraffin to the tank

2. Hang the SDT203 under the hood using the attached hook

3. Connect the battery clips to a 12V vehicle battery

4. Attach the smoke output hose to the system under test

5. Turn on the power switch to activate smoke generation

6. Observe smoke flow and pressure via the front display

7. Inspect components for escaping smoke to locate leak

8. Power off the unit and allow it to cool between uses

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Technical Specs

Power Supply: 12V DC
Smoke Output Time: 10–30 seconds
Oil Capacity: 10–15 ml
Working Temperature: -20 °C to +75 °C
Auto Shut-Off Temperature: 75 °C
Pump Type: Built-in
Weight: Approx. 1.7 kg
Dimensions: 180 × 135 × 100 mm
Compatible Fluids: Baby oil or paraffin only

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Download User Manual (PDF)

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What’s in the Box

1 × AUTOOL SDT203 Smoke Leak Detector
1 × Smoke Output Hose
1 × Battery Clip Power Cable
1 × Oil Filler Bottle
1 × Cone Adapter
1 × Hanging Hook
1 × User Manual