Smoke Leak Detector

AUTOOL SML310 Automotive Smoke Leak Detector with Mechanical Pressure Gauge

Model SML310

  • Air + Smoke Modes: Use an air-only pressure stage before switching to smoke for visual leak localization.
  • Built-In Air Pump: Run routine tests without a separate shop-air compressor.
  • Visual Pressure Gauge: Watch pressure behavior while the connected test volume fills, then inspect unstable or falling readings with smoke.
  • Oil Drain Valve: Drain aged or excess smoke oil before refilling or storing the machine.
  • Smoke in About 5 Seconds: Begin smoke output in about five seconds after the prepared system is activated.
Voltage
110V 220V

AUTOOL SML310 · Smoke Tester with Air Mode and Oil Drain

Check with Air Before Tracing with Smoke

Use this automotive smoke leak detector in an air-only stage to watch pressure behavior in the connected test volume, then switch to smoke to inspect the visible leak path. SML310 combines a built-in pump, pressure gauge, fast smoke output, and an oil drain valve for routine permitted low-pressure testing without a separate shop-air compressor.

  • Separate Air And Smoke Modes
  • Built-In Pump, No Shop Air
  • Pressure-Gauge Feedback
  • Oil Drain Valve
  • About 5-Second Smoke Start
AUTOOL SML310 smoke leak detector

Key Features

Air and Smoke Modes with Pressure Monitoring

Air and Smoke Modes

Use an air-only or pressure stage before switching to smoke for visual localization, following the model controls and system procedure.

Built-In Air Pump

The internal pump supplies test airflow, so routine setup does not require a separate shop-air compressor.

Visual Pressure Gauge

Watch pressure behavior while the connected test volume fills, then use Smoke mode to inspect any unstable or falling reading.

Oil Drain Valve

Empty aged or excess smoke oil through the drain valve before refilling or storing the machine.

Smoke in About 5 Seconds

Smoke starts in about five seconds after the prepared system is connected and the mode is activated.

Overheat Shutdown Above 75°C

Temperature protection stops operation when the model reaches its protection condition; allow the unit to cool before further use.

65W Rated Power

The 65 W rating works with the specified 12 V / 5 A supply; use a stable vehicle-battery connection.

3 Years Warranty Support

Main unit: 3-year warranty. Standard accessories: 1-year warranty. Warranty Policy.

Safety & Compatibility

Keep Test Pressure Within the System Procedure

Match Pressure to the System

The machine rating is not permission to apply its maximum to every vehicle system. Use the OEM or component procedure and the lowest appropriate controlled setting.

Confirm Air and Power

Connect SML310 to a stable DC 12 V / 5 A supply. Its built-in pump provides airflow; do not connect shop air to an unspecified port.

Protect People and Components

Work in a dry, well-ventilated area away from flame and hot sources; use eye and hand protection and avoid directing smoke at smoke-sensitive or precision electronic parts.

Inspect Hoses and Adapters

Do not operate with damaged power leads, hoses or adapters. Clean an opening before inserting an inflatable airbag so sharp edges do not puncture it.

Use Approved Smoke Machine Fluid

Follow the model manual for fluid selection, fill level, draining and storage. Do not use water, viscous or corrosive liquids.

Interpret Results Carefully

Pressure-gauge movement or escaping smoke supports the next inspection step. Neither result alone rules out incorrect isolation, blockage, valve-control, intermittent, or non-leak faults.

Test Results

Read Pressure Movement and Visible Smoke Separately

Read the Hold Result Against the Procedure

Treat the result as a pass only when the selected setup and pressure limit match the vehicle or component procedure.

Pressure Drops or Exceeds the Procedure Limit

Check the machine self-test, connection and intentional openings, then use smoke to inspect for an escape path.

Smoke Escapes

Confirm the smoke is not leaving a normal open route, repair the verified leak and repeat the same test.

No Smoke Is Visible

Recheck setup and isolation, then investigate valve control, blockage, intermittent behavior or a non-leak cause as the vehicle procedure directs.

Specifications

SML310 Specifications

Operating specifications
Working Principle Low Oxygen Combustion
Input Power DC 12V/5A
Test Oil Filling Volume 10ml
Rated Output Pressure <15psi
Rated Output Flow <6L/min
Rated Power 65W
High-Temperature Protection Stops working above 75°C
LOW-Temperature Protection Confirm the operating-temperature limit for the selected unit.
Hardware and air supply
Flow Meter Window ×
Net Weight (Main Unit) 3.2kg
Main Unit Dimensions 250mm*160mm*165mm
Pressure Gauge Gauge
Air Source Type Built-in pump
Modes and controls
Mode Output Air Mode/Smoke Mode
Dual Pressure Mode ×
Flow Adjustment Knob ×
Oil Drain Valve ×
Fault Indicator Light ×
Oil Level Gauge ×
Setup & Control
Control level Gauge, Air/Smoke

Manual & Downloads

Use the Manual for Setup and Test Pressure

AUTOOL SML310 manual and setup guides cover
Manual / PDF

AUTOOL SML310 User Manual

Open the PDF manual for SML310 Air and Smoke modes, pressure checks, built-in pump operation, smoke-oil draining, operating safety, and troubleshooting.

AUTOOL SML310 official package layout

Package

What’s Included

  • Confirm Your PackageIncluded accessories can vary by order. Confirm the main unit, 12 V power lead, smoke hose, adapters, sealing tools, oil bottle and quantities before ordering.

FAQs

Air Mode, Oil Drain, and Pressure Questions

What air source does SML310 use?

It has a built-in air pump, so normal testing does not require a separate shop-air compressor.

Can I use the maximum pressure on an EVAP system?

Do not assume so. Choose pressure from the vehicle procedure; machine capacity and EVAP-safe pressure are different facts.

What Does Air Mode Tell Me?

Use Air Mode to observe pressure-gauge behavior under the selected sealed setup. Compare the reading with the vehicle or component limit, then inspect the suspected leak area when the reading changes.

What does Smoke mode add?

Smoke gives a visible tracer for inspecting an escape path after the test volume is connected and isolated correctly.

What if no smoke is visible?

Verify smoke delivery, access, isolation, adapter sealing and valve state. Then continue with the applicable functional diagnosis because blockage, intermittent or non-leak faults may not produce visible smoke.

Are all pictured accessories included?

Package contents vary by order. Confirm every included item and quantity before ordering.

Does a visible leak guarantee the entire repair?

It identifies an area to inspect and confirm. Repair the verified problem and repeat the test, then complete any required vehicle checks.