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AUTOOL SDT102 Car Smoke Tester for Vacuum Leaks with Pressure Gauge
US$82.00
Key Features
- Pressure Gauge Feedback
- Vacuum, Intake & EVAP Testing
- Built-In Air Pump
- Airbag & Cone Adapters
- Pressure Gauge Feedback: Once the test section is sealed, monitor pressure changes as another signal alongside visible smoke.
- Vacuum, Intake & EVAP Testing: Use it for common vacuum, intake, and EVAP leak checks, plus exhaust, crankcase, and other supported low-pressure systems.
- Built-In Air Pump: No external compressor is required, making setup convenient for DIY use and routine workshop diagnostics.
- Airbag & Cone Adapters: Included adapters help seal common intake and pipe openings for a more reliable first test setup.
- 3-Year Warranty Main unit 3 years · Accessories 1 year
- 90-Day Returns Eligible returns within 90 days
- Official Store Genuine products · Direct support
AUTOOL SDT102 · Built-In Pump Smoke Leak Detector with Pressure Gauge
See Pressure Changes During Vacuum, Intake & EVAP Tests
The AUTOOL SDT102 is a compact, lightweight automotive smoke leak detector with a built-in air pump and pressure gauge. It supports low-pressure leak checks in EVAP, intake, exhaust, crankcase, vacuum, engine sealing areas, and low-pressure turbo systems. No external air compressor is required. It runs from a 12V DC vehicle battery. Compatible vehicles include cars, motorcycles, ATVs, snowmobiles, off-road vehicles, light trucks, and speedboats.
- Pressure Gauge Leak Check
- EVAP / Vacuum Leak Detection
- Built-In Air Pump
- 5-Second Smoke Output
<10 psiRated Pressure
1.6 kgMain Unit Weight
75°C / -20°COverheat / Min. Operating Temp.
3 YearsMain Unit Warranty
Core leak-detection capabilities
Key Features
SDT102 combines pressure-gauge monitoring with a built-in air pump for EVAP-focused and other low-pressure smoke tests. It supports intake, exhaust, crankcase, fuel-tank, vacuum, and low-pressure turbo checks. Grouped controls, automatic overheat and low-temperature protection, and 3-year main-unit warranty support complete the core setup.
Pressure Gauge Leak Check
Use the pressure gauge to monitor pressure changes and quickly check whether the test line may be leaking.
EVAP Detection
Supports EVAP leak detection and is compatible with American cars from 1996+ when connected with EVAP service tools that match the vehicle test port.
Built-In Air Pump
No external air compressor is required. The built-in pump saves setup time and makes SDT102 easier for DIY and workshop use.
Intake / Exhaust / Vacuum / Low-Pressure Turbo Checks
For vacuum-system diagnostics, SDT102 can be used as a smoke tester for vacuum leaks. It also supports low-pressure testing of intake, exhaust, crankcase, engine sealing areas, line fittings, and low-pressure turbo systems.
EVAP / Vacuum
Supports EVAP and vacuum leak checks when the service access tools and adapters match the vehicle test port.
Intake / Exhaust
Helps find leaks in intake and exhaust systems by filling the test section with smoke for visual inspection.
Crankcase / Oil Seal
It can also check crankcase leaks, oil seals, intercooler air paths, and engine sealing areas under low-pressure conditions.
Fuel Tank / Coolant Tank / Line Fittings
Supports fuel tank, coolant tank, line fittings, and low-pressure turbo system leak checks; do not smoke-test any component that the vehicle or component service procedure excludes.
Overheat + Low-Temperature Protection
Overheat and low-temperature protection help protect the unit. The unit can operate at temperatures down to -20°C.
Compact Interface
The body integrates the power interface, smoke output, oil filler, pressure gauge, handle, and operation controls in a compact structure.
3-Year Warranty Support
Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy
Step-by-step smoke leak testing
Step-by-Step Instructions
Use liquid paraffin or baby oil, connect the test line, power the unit with a 12V DC battery, and inspect for escaping smoke once the line fills.
Step 01
Add Testing Oil
Fill 10–15 mL baby oil or liquid paraffin into the detector. Do not overfill.
Step 02
Connect the Test Line
Access the system to be tested and hang the detector if needed. Disconnect the line you want to test, then connect it to the smoke leak detector using the hose or adapter that matches the line or test port.
Step 03
Connect 12V Power
Connect the detector to a 12V DC battery, then turn on the power switch to start the unit.
Step 04
Locate Leaks
The unit starts producing smoke quickly; the test line may fill with smoke in about 30 seconds depending on system volume. Inspect for escaping smoke to locate leaks and use a headlamp if necessary.
Power, pressure-gauge and fault-indicator use, testing oil, heat, and low-pressure limits
Safety & Compatibility
SDT102 has a built-in air pump, pressure gauge, and fault indicator for permitted low-pressure smoke tests. Use the gauge to watch pressure changes and the fault indicator to check unit status; neither one changes the pressure limits for the system you are testing.
12V Power and Built-In Air Pump
Connect SDT102 to a 12V DC vehicle battery and confirm correct polarity before use. The built-in air pump provides the test airflow, so you do not need an external compressor.
Use the Pressure Gauge to Watch Test Pressure
SDT102 outputs less than 10 psi with rated flow above 6 L/min. Watch the gauge for pressure changes in the connected test path, and stay within the pressure allowed by the vehicle or component service procedure.
Use the Fault Indicator for Unit Status
The fault indicator shows the unit’s operating status. Use it together with the instructions; it does not measure pressure or replace the pressure limits for the system under test.
Testing Oil Is Not Included
Testing oil is not included. Use liquid paraffin or baby oil and add 10–15 mL before use.
Refill Only When Smoke Becomes Thin
Add fresh oil only when the smoke output becomes thin. Drain the remaining oil first, then add fresh oil without exceeding 15 mL at one time.
Limit Continuous Use to 8 Minutes
Do not run SDT102 continuously for more than 8 minutes. Automatic overheat protection stops operation above 75°C. Let the unit cool before restarting.
Operating Temperature and Hot Surfaces
SDT102 supports operation down to -20°C. The round metal housing can become hot during use, so avoid touching hot surfaces directly.
Do Not Use for Direct A/C Pressure Testing
SDT102 cannot directly pressure-test an automotive A/C system. If a service procedure permits smoke on an isolated A/C line section, follow that procedure and use smoke only as an indirect visual aid.
Compare AUTOOL smoke leak detector models
Compare Smoke Leak Detector Models
Compare AUTOOL smoke leak detector models by air source, pressure, output flow, operating mode, gauges, flow control, oil handling, vehicle power compatibility, and other model-specific features.
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| Specification | Model 1AUTOOL SDT203 | Model 2AUTOOL SDT50 | Model 3AUTOOL SDT60 | Model 4AUTOOL SDT100 | Model 5AUTOOL SDT101 | Model 1AUTOOL SDT102 | Model 7AUTOOL SDT103 | Model 8AUTOOL SDT106 | Model 9AUTOOL SDT205 | Model 10AUTOOL SDT205S | Model 11AUTOOL SDT206 | Model 12AUTOOL SDT208 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Core Output and Power | ||||||||||||
| How It Works | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion | Low-Oxygen Combustion |
| Input Power | 12V DC | 12V DC | 12V DC | 12V DC | 12V DC / 5A | 12V DC | 12V DC / 5A | 12V DC | 12V DC | 12V DC | 12V DC | 12V / 24V DC |
| Testing Oil Fill Volume | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL | 10–15 mL |
| Rated Output Pressure | <15 psi | <10 psi | <10 psi | <10 psi | 3.2 kPa (0.46 psi) | <10 psi | 3.2 kPa (0.46 psi) | <12 psi | <15 psi | <15 psi | <18 psi | <10 psi EVAP / 35 psi Standard |
| Rated Output Flow | <6 L/min | <5 L/min | <5 L/min | <5 L/min | >10 L/min | >6 L/min | >10 L/min | <5 L/min | <6 L/min | <6 L/min | <6 L/min | <15 L/min |
| Rated Power | 65 W | 50 W | 50 W | 50 W | 48 W | 48 W | 48 W | 50 W | 65 W | 65 W | 70 W | 80 W |
| High-Temperature Protection | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C | Automatic shutdown above 75°C |
| Response Time | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds | Produces smoke in 5 seconds |
| Monitoring and Control | ||||||||||||
| Flow Meter Window | Included | Not included | Not included | Not included | Not included | Not included | Included | Not included | Not included | Included | Included | Included |
| Pressure Gauge | Included | Not included | Included | Not included | Not included | Included | Not included | Not included | Included | Included | Included | Included |
| Flow Adjustment Knob | Included | Not included | Not included | Not included | Not included | Not included | Included | Not included | Not included | Included | Included | Included |
| Fault Indicator Light | Included | Not included | Not included | Included | Not included | Included | Not included | Not included | Included | Included | Included | Included |
| Oil Level Gauge | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Included | Included |
| Air Source and Operating Modes | ||||||||||||
| Air Source Type | Built-in Air Pump | Built-in Air Pump | Built-in Air Pump | Built-in Air Pump | External Air Source | Built-in Air Pump | External Air Source | Built-in Air Pump | Built-in Air Pump | Built-in Air Pump | Dual Built-In Air Pumps | Built-in Air Pump |
| Operating Modes | Smoke Mode | Smoke Mode | Smoke Mode | Smoke Mode | Smoke Mode | Smoke Mode | Smoke Mode | Smoke Mode | Air Mode / Smoke Mode | Air Mode / Smoke Mode | Air Mode / Smoke Mode | Air Mode / Smoke Mode |
| Dual Pressure Mode | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Standard Mode (35 psi) / EVAP Mode (10 psi) |
| Oil Drain Valve | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Not included | Included | Included | Included | Included |
| Size and Weight | ||||||||||||
| Net Weight (Main Unit) | 1.7 kg | 1.5 kg | 1.6 kg | 1.6 kg | 1.6 kg | 1.6 kg | 1.15 kg | 3.5 kg | 3.2 kg | 3.2 kg | 3.5 kg | 4.2 kg |
| Main Unit Dimensions | 145 × 80 × 200 mm | 145 × 80 × 200 mm | 145 × 80 × 200 mm | 180 × 102 × 143 mm | 180 × 100 × 135 mm | 180 × 102 × 143 mm | 180 × 100 × 135 mm | 110 × 135 × 210 mm | 295 × 295 × 207 mm | 295 × 295 × 207 mm | 150 × 150 × 275 mm | 350 × 250 × 300 mm |
Model Guide
Use this overview to identify the smoke leak detector models you want to compare in detail.
AUTOOL SDT203
Built-in air pump · <15 psi rated output pressure · <6 L/min rated output flow · Smoke Mode
AUTOOL SDT50
Built-in air pump · <10 psi rated output pressure · <5 L/min rated output flow · Smoke Mode
AUTOOL SDT60
Built-in air pump · <10 psi rated output pressure · <5 L/min rated output flow · Smoke Mode
AUTOOL SDT100
Built-in air pump · <10 psi rated output pressure · <5 L/min rated output flow · Smoke Mode
AUTOOL SDT101
External air source · 3.2 kPa (0.46 psi) rated output pressure · >10 L/min rated output flow · Smoke Mode
AUTOOL SDT102
Built-in air pump · <10 psi rated output pressure · >6 L/min rated output flow · Smoke Mode
AUTOOL SDT103
External air source · 3.2 kPa (0.46 psi) rated output pressure · >10 L/min rated output flow · Smoke Mode
AUTOOL SDT106
Built-in air pump · <12 psi rated output pressure · <5 L/min rated output flow · Smoke Mode
AUTOOL SDT205
Built-in air pump · <15 psi rated output pressure · <6 L/min rated output flow · Air Mode / Smoke Mode
AUTOOL SDT205S
Built-in air pump · <15 psi rated output pressure · <6 L/min rated output flow · Air Mode / Smoke Mode
AUTOOL SDT206
Two built-in air pumps · <18 psi rated output pressure · <6 L/min rated output flow · Air Mode / Smoke Mode
AUTOOL SDT208
Built-in air pump · <10 psi EVAP / 35 psi Standard rated output pressure · <15 L/min rated output flow · Air Mode / Smoke Mode
What’s in the Box
Package Contents
SDT102 package contents are shown below.
- Main unitIncluded
- Power clamp cableIncluded
- Smoke output hoseIncluded
- Universal airbag adapterIncluded
- Empty testing oil refill bottleIncluded
- Rubber cone adapterIncluded
- User manualIncluded
Manual, warranty, and setup support
Manual and Downloads
Use the EN-DE manual below for SDT102 setup, operation, maintenance, safety, and troubleshooting guidance.
AUTOOL SDT102 User Manual
Open the PDF manual for SDT102 setup, operation, testing oil, safety notes, and troubleshooting guidance.
Frequently asked questions
Frequently Asked Questions
What Testing Oil Should I Use for SDT102?
Testing oil is not included. If dedicated smoke-testing oil is unavailable, use liquid paraffin or baby oil.
How Much Testing Oil Should I Add?
Add 10–15 mL before use. Do not add more than 15 mL at a time. If too much oil is added accidentally, drain some oil out before operation; the extra oil can be reused next time. Refill only when the smoke becomes thin, and drain remaining testing oil before adding fresh oil.
What Should I Check If SDT102 Does Not Produce Smoke?
First confirm that the unit is connected to a 12V DC battery with correct polarity. Then check whether 10–15 mL liquid paraffin or baby oil has been added, whether the unit has overheated, and whether the smoke has become thin because the oil needs replacement. Do not add oil while the unit is running. If the issue remains, contact support with photos or a short video of the setup.
What Systems Can SDT102 Test?
SDT102 supports low-pressure leak checks for EVAP, intake, exhaust, crankcase, vacuum, engine sealing areas, and low-pressure turbo systems. It can also check fuel tanks, coolant tanks, oil seals, intercooler air paths, and line fittings.
Can SDT102 Detect EVAP Leaks?
Yes. AUTOOL smoke leak detectors can test leaks in the EVAP system. SDT102 supports EVAP leak detection, including American cars from 1996+ when connected with EVAP service tools and adapters that match the vehicle test port.
Can SDT102 Directly Test Automotive A/C System Leaks?
No. Automotive A/C systems operate at about 1.7–3.0 MPa output pressure, while SDT102 has rated output pressure below 10 psi. SDT102 cannot directly pressure-test the automotive A/C system for leaks. Use smoke only to help inspect an A/C line section after isolating and pressurizing it according to the service procedure.
How Can SDT102 Help Check an Isolated A/C Line?
First isolate and pressurize the A/C line segment according to the vehicle or A/C service procedure. Then apply smoke near the test section and observe whether escaping airflow disturbs the smoke. If escaping air moves the smoke, inspect that area for a possible leak. This can help locate a leak; it is not a direct A/C pressure test.
Does SDT102 Need an External Air Compressor?
No. SDT102 has a built-in air pump, so no external air compressor is required. It only needs 12V DC vehicle battery power and the correct amount of testing oil.
Can I Adjust the Pressure on SDT102?
SDT102 uses fixed smoke-mode output below 10 psi. If separate Standard and EVAP pressure modes are required, compare SDT208. Use SDT102 only within its specified low-pressure range.
What Accessories Are Included with SDT102?
Included accessories vary by package option. Check the product listing for the exact items included. Testing oil is not included.
How Do AUTOOL Smoke Leak Detector Models Differ?
SDT101 and SDT103 use external air sources and 3.2 kPa / 0.46 psi EVAP pressure. SDT106 uses a built-in air pump with <12 psi output. SDT203, SDT205, and SDT205S use <15 psi output, while SDT206 uses <18 psi with two built-in air pumps. SDT208 provides Standard 35 psi and EVAP 10 psi modes. Air source, pressure, flow, modes, gauges, and accessories differ by model.
How Long Is the Warranty for SDT102?
Main unit: 3-year limited warranty. Standard accessories: 1-year limited warranty. See Warranty Policy for coverage and exclusions. AUTOOL smoke leak detectors are sold online and offline in 160+ countries and regions, with after-sales support available. Contact AUTOOL support if you need help with warranty coverage or service.
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