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Smoke Machine Leak Detector For leak test-AUTOOL SDT50
US$85.00
Key Features
- Built-In Pump
- Rapid Smoke
- Portable Body
- Built-In Pump: The integrated air pump removes the need for a separate external air source during smoke testing.
- Rapid Smoke: Rapid smoke generation helps fill the test pipe quickly so leak checks can start sooner.
- Portable Body: At 1.5kg, the machine is positioned as easy to carry and store between jobs.
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AUTOOL SDT50
Product Overview
AUTOOL SDT50 is a lightweight and portable automotive smoke tester with a built-in air pump, designed for detecting leaks in intake systems, exhaust systems, fuel tank systems, car sealing areas, and various pipe fittings. It does not require a separate air supply, making it convenient for mobile diagnosis, DIY inspection, and basic workshop leak detection.
Built-In Air Pump DC 12V Battery 10-15ml Test Oil 1.5kg Portable
<10psiOutput Pressure
<5L/minOutput Flow
50WRated Power
3 YearsWarranty
Click to enlargeKey Features
Key Features
SDT50 focuses on portable 12V smoke leak detection with built-in air pump, quick smoke output, thermal protection, wide leak coverage, and broad 12V vehicle compatibility.
Built-In Air Pump
No need to connect an external air supply. The built-in pump makes SDT50 convenient for quick testing at different locations without purchasing an extra air pump.
Quick Smoke Output
Press the smoke switch to generate a large amount of smoke quickly, helping users locate automotive leak points faster.
Lightweight And Portable
The SDT50 smoke machine leak detector weighs only 1.5kg, does not take up much storage space, and is easy to carry for mobile diagnosis.
High / Low Temperature Protection
The machine intelligently powers off when the temperature reaches 75°C, and it can still work when the temperature reaches -20°C.
Wide Leak Detection Coverage
Suitable for checking crankcase, oil seal, intercooler air, throttle valve, intake manifold, exhaust pipe, fuel tank, pipe fittings, coolant tank, and related leak points.
Wide Vehicle Coverage
Suitable for cars, motorcycles, trucks, snowmobiles, off-road vehicles, speedboats, and other vehicles that use 12V DC power.
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Click to enlargeHow To Use
How To Use
Use the SDT50 with a DC 12V battery, liquid paraffin or baby oil, and the included smoke hose. Before use, gently turn the knob to open the airflow regulator valve.
Add Test Oil
Fill 10-15ml baby oil or liquid paraffin into the detector before first use. Do not exceed this range.
Connect The Test Pipe
Open the engine cover, hang the detector if needed, and disconnect the pipe that needs to be connected to the detector.
Power On
Connect the detector to a DC 12V battery, gently open the airflow regulator valve, then turn on the power switch.
Locate Leaks
In about 30 seconds, the pipe will be filled with smoke. Check the leak points visually and use a headlamp if necessary.
Use Notes
- Liquid paraffin and baby oil are both acceptable testing liquids.
- Add fresh oil only when the smoke becomes thin.
- Do not add more than 15ml oil each time.
- Before filling fresh oil, pour out the remaining oil in the detector and replace detector oil regularly.
- During leak detection, keep away from smoke-sensitive parts.
- Do not run the detector continuously for more than 8 minutes.
- If the machine shuts off due to 75°C protection, let it rest before reuse.
- The round metal part may become hot; avoid burns.
Click to enlargeSpecifications
AUTOOL SDT50 Specifications
Review SDT50 power, pressure, flow, weight, size, and testing oil requirements before ordering.
| Core Specifications | |
| Product | AUTOOL SDT50 Smoke Leak Detector |
| Working Theory | Low oxygen combustion |
| Power Supply | DC 12V battery |
| Air Pressure Output | Built-in air pump |
| Rated Output Pressure | <10psi |
| Rated Output Flow | <5L/min |
| Rated Power | 50W |
| Product Weight | 1.5kg |
| Gross Weight | 2.5kg |
| Product Size | 145 × 80 × 200mm / 5.7 × 3.14 × 7.87in |
| Test Oil Filling Volume | 10-15ml; do not exceed 15ml each time |
Click to enlargeSDT50 Specs
Working TheoryLow oxygen combustion
Power SupplyDC 12V battery
Air Pressure OutputBuilt-in air pump
Rated Output Pressure<10psi
Rated Output Flow<5L/min
Rated Power50W
Product Weight1.5kg
Gross Weight2.5kg
Product Size145 × 80 × 200mm / 5.7 × 3.14 × 7.87in
Test Oil10-15ml; do not exceed 15ml each time
Click to enlargeWhat Is In The Box
What Is In The Box
The SDT50 package image shows the main detector, product box, hose, power clamp cable, filling accessories, hanging hook, and user manual. Packing List uses only the most relevant package image for clarity.
Main UnitAUTOOL SDT50 Smoke Leak Detector
Power Cable12V battery clamp cable
Smoke HoseSmoke output hose
Filling AccessoriesFunnel and filling bottle shown in the package image
HookHanging hook
DocumentationUser manual
Testing LiquidUse liquid paraffin or baby oil locally if needed
Product Comparison
Product Comparison
Use the comparison chart to understand where SDT50 sits in the AUTOOL smoke leak detector lineup and whether another model better matches EVAP, pressure gauge, air mode, smoke mode, or workshop needs.
SDT50 FocusLightweight entry model with built-in air pump, smoke mode, <10psi pressure, <5L/min output flow, 50W rated power, and 1.5kg main-unit weight
SDT60Adds pressure gauge support while keeping a compact built-in-pump setup
SDT101 / SDT103EVAP-focused external-air-source models for users with an air compressor
SDT205 / SDT205S / SDT206 / SDT208Support air mode + smoke mode for more flexible workshop diagnostics
SDT208Supports high pressure mode 35psi and low pressure mode 10psi
Click to enlargeManual And Downloads
Manual And Downloads
Download the AUTOOL SDT50 user manual for setup, test oil filling, 12V power connection, smoke testing, and safe-use instructions.
Click to enlargeAUTOOL SDT50 User Manual
Open the PDF manual for SDT50 setup, oil filling, power connection, smoke output, and safe-use guidance.
Download ManualNeed SDT50 Setup Help?
Contact AUTOOL support if you need help confirming test oil, 12V battery connection, airflow regulator valve operation, overheating protection, or SDT model selection.
Before You Order And Use
Before You Order And Use
SDT50 requires a 12V battery and proper test oil control. Review these operating notes before using the smoke detector.
Power And Oil
- SDT50 must be connected to a 12V battery.
- Fill 10-15ml oil before first use. Do not exceed this range.
- Liquid paraffin and baby oil are both acceptable testing liquids.
- Fresh oil can be added only when smoke becomes thin.
- Do not add more than 15ml oil each time.
- Before filling fresh oil, pour out the remaining oil in the detector and replace detector oil regularly.
Operation And Protection
- Before use, gently turn the knob to open the airflow regulator valve.
- During leak detection, keep away from smoke-sensitive parts.
- Do not run the detector continuously for more than 8 minutes.
- If the detector exceeds the working limit, such as over 75°C, it will automatically turn off power.
- If the machine powers off due to protection, operate it later after cooling.
- The round part of the detector may become hot; avoid burns.
Related Products
Related Products
Compare related AUTOOL smoke leak detector models before choosing the right pump setup, EVAP support, air / smoke mode, pressure range, and workshop function.
- Select options This product has multiple variants. The options may be chosen on the product page
Automotive Smoke Leak Detector for EVAP Smoke Tests SDT60
From US$95.00 - Select options This product has multiple variants. The options may be chosen on the product page
Auto Smoke Leak Detector For EVAP System-AUTOOL SDT101
From US$80.00 - Select options This product has multiple variants. The options may be chosen on the product page
Automotive Smoke Tester for EVAP System 12V- AUTOOL SDT103
From US$90.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SDT106 Auto EVAP Leakage Smoke Test Machine
From US$129.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SDT203 EVAP Smoke Machine Vacuum Smoke Tester
From US$159.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SDT205 Automotive Smoke Machine Leak Detector
From US$199.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SDT205S Smoke Leak Detector
From US$249.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SDT206 Smoke Machine For Vacuum Leaks
From US$299.00 - Select options This product has multiple variants. The options may be chosen on the product page
AUTOOL SDT208 Smoke for Leak Detection
From US$429.00
Questions And Answers
These answers cover external air supply, test oil type, oil amount, 12V power, continuous operation, overheating protection, hot surface warning, smoke-sensitive parts, and model selection.
No. AUTOOL SDT50 has a built-in air pump, so it does not require a separate air supply or extra air pump for normal smoke leak detection.
Liquid paraffin and baby oil are both acceptable testing liquids for SDT50. Replace detector oil regularly and pour out remaining oil before filling fresh oil.
Fill 10-15ml oil before first use. Do not exceed this range. Fresh oil can be added only when smoke becomes thin, and do not add more than 15ml each time.
SDT50 must be connected to a DC 12V battery. It is suitable for 12V DC vehicle leak detection scenarios.
Do not run the detector continuously for more than 8 minutes. It needs interval rest to protect the machine and maintain reliable smoke output.
The detector has an intelligent protector. If it exceeds the working limit, such as over 75°C, it will automatically turn off power. Let the machine cool down and operate it later.
Yes. The round part of the detector may have temperature during operation. Be careful and avoid burns.
Yes. During the leak detection process, keep away from smoke-sensitive parts to avoid unnecessary contamination or sensitivity issues.
SDT50 is the lightweight entry model with built-in air pump, smoke mode, <10psi pressure, <5L/min output flow, 50W rated power, and 1.5kg main-unit weight. SDT60 adds pressure gauge support, SDT101 / SDT103 are EVAP-focused external-air-source models, SDT205 / SDT205S / SDT206 / SDT208 support air mode + smoke mode, and SDT208 supports 35psi high pressure and 10psi low pressure modes.
Warranty And Contact
Warranty And Contact
For SDT50 test oil, 12V power connection, airflow regulator valve use, overheating protection, hot surface warning, accessory confirmation, manual support, or SDT model selection, contact AUTOOL Store directly.
Pre-Sales And Product Support
Use support if you need help confirming SDT50 setup, testing liquid, 10-15ml oil filling, 8-minute operation limit, 75°C protection, package contents, or whether another AUTOOL smoke detector model better fits EVAP or air / smoke dual-mode diagnostics.
- 3-year warranty for eligible non-human damage cases
- Test oil and 12V power setup confirmation
- Airflow regulator valve and smoke output guidance
- Overheating protection and hot-surface safety support
- Package accessory and manual support
- SDT50 / SDT60 / SDT101 / SDT103 / SDT205 / SDT206 / SDT208 model selection
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