ALT300 Automotive Leak Tester & Locator
- Dual Detection Mode (Smoke & Air Mode)
- Bulit-in Air Pump, not limited by the site
- Leakage detection of various pipeline systems
- Conforming to SAE & other international standards
- Advanced overheat protection
- Wide vehicle compatibility






Description
Accessories
Comparisons
Description
Description
The ALT300 automotive smoke leak tester is a professional-grade diagnostic tool used to identify leaks in various automotive pipe systems. This includes the air intake system, EVAP system, air brake system, cooling tank, exhaust system, and more. With its fast smoke generation and large output volume, the ALT300 auto pipe leak detect tool effectively reduces diagnostic time and boosts efficiency for automotive technicians and repair workshops.
Features
Powerful Multifunctional Detection
The ALT300 smoke leak tester complies with SAE standards and is designed to detect leaks in a variety of automotive pipeline systems. It can detect leaks in various systems, such as intake system, EVAP system, fuel system, cooling system, exhaust system, car sealing system, and vacuum systems.
Rapid Smoke Output
Generates dense smoke within 5 seconds, allowing technicians to identify leak points quickly and clearly.
Quick Leak Diagnosis Via
Built-in pressure gauge provides real-time data, helping mechanics locate system leaks with visual precision.
Advanced overheat & Anti-Freeze Protection
Equipped with a temperature control system, cooling fan, and anti-freeze design for safe and stable operation in various workshop environments.
Lightweight with Built-in Air Pump
Compact design makes it easy to carry, store, and operate, even in tight engine compartments.
Wide Application Compatibility
Suitable for cars, SUVs, motorcycles, light trucks, ATVs, boats, and other 12V vehicle systems.
Advantages
Fast and Stable Smoke Flow Output
Smoke can be generated within 5 seconds to reduce the diagnosis time, reducing waiting time and enabling instant diagnostics.
User-Friendly Design
Easy-to-read pressure gauge and intuitive controls make it accessible for beginners and professionals alike.
Dual Detection Mode (Smoke & Air Mode)
Supports both smoke and air modes for flexible leak testing depending on the repair scenario.
No Need Extra Air Compressors
Comes with a built-in air pump, allowing plug-and-play convenience. Ideal for mobile repairs or use in workshops without compressed air supply.
Good Heat Dissipation Performance
Overheat protection and excellent heat dissipation ensure long service life and reliable performance under continuous use.
Specifications
Voltage | DC12V |
Current | 6A |
Test Pressure | 3-4 KPa |
Air Flow | 1-8 L/Min |
Oil Volume | 30 ML |
Oil Consumption | 0.5 ML/Min |
Test Hose Length | 1.5 M |
Power Cable Length | 1.5 M |
Accessories
Packing List(Standard configuration)
Main Unit *1 | Inflatable Adaptor *1 |
Power Cords *1 | Smoke Tube *1 |
Hook *1 | Intake Adaptor Core *1 |
Funnel *1 | EVAP test suite *1 |
Sealing plugs *1 | User Manual *1 |
Video
Comparisons
Model | ALT550 | ALT500 | ALT400 | ALT300 |
Dual Mode Detection ( Smoke & Air Mode) | √ | √ | √ | √ |
Bulit-in Air Pump | √ | √ | √ | √ |
LED Display | √ | √ | × | × |
Self Protection System | √ | √ | √ | √ |
Pressure Guage | √ | √ | √ | √ |
Adjustable Flowmeter | √ | √ | √ | × |
Oil Level Guage | × | × | √ | √ |
Test Oil Capacity | 30ML | 30ML | 30ML | 30ML |
EVAP Test Pressure | 5-8 KPa | 5-8 KPa | 3-4 KPa | 3-4 KPa |
Turbo Test Pressure | 0.8-1.2 Bra | 0.8-1.2 Bra | × | × |
HD Test Pressure | 2.8 Bra | × | × | × |
Output Flow Rate | 1-25 L/Min; 1-60 L/Min (external air source) | 1-25 L/Min | 1-25 L/Min | 1-25 L/Min |
Time Of Smoke Appearance | EVAP & TURBO: Adjust freely 5/10/15s HD: Adjust freely 10/20/30 |
Adjust freely 5/10/15s | 5s | 5s |
Power Supply | DC12V/6A | DC12V/6A | DC12V/6A | DC12V/6A |
Wide Vehicles Compatibility | √ | √ | √ | √ |
Applicable Test Systems | Intake System, Exhaust System, Fuel Tank System, Coolant Tank Test, Combustion Chamber Test, Car Sealing Test, Various Pipe Fittings Test, A/C System Leak Test, Air Brake System Test |
Intake System, Exhaust System, Fuel Tank System, Coolant Tank Test, Combustion Chamber Test, Car Sealing Test, Various Pipe Fittings Test, Turbo System |
Intake System, Exhaust System, Fuel Tank System, Coolant Tank Test, Combustion Chamber Test, Car Sealing Test, Various Pipe Fittings Test |
Intake System, Exhaust System, Fuel Tank System, Coolant Tank Test, Combustion Chamber Test, Car Sealing Test, Various Pipe Fittings Test |