AutoLine Pro Automotive High-Volume Smoke Machine SM701B — Red with Built-in Compressor, 2025 EVAP Leak Detector

The AutoLine Pro SM701B is a high-volume automotive smoke machine with an integrated air compressor built to locate EVAP, intake, vacuum and exhaust leaks quickly and reliably.

Designed for professional technicians and serious DIYers, the 2025-model SM701B combines a durable ceramic heating cartridge with a built-in compressor to produce thick, consistent smoke that exposes tiny leaks in vehicle systems. Compact enough for shop use but powerful enough for heavy-duty diagnostics, this kit simplifies leak detection across EVAP systems, intake manifolds, vacuum lines and other sealed components.

How does the SM701B find EVAP and intake leaks?

The SM701B pressurizes the system and fills it with visible smoke, making escape points obvious even when leaks are very small. Because the unit produces a steady, dense output, technicians can trace smoke to the exact breach without disassembling large sections of the vehicle.

• Integrated compressor provides consistent pressurization for accurate diagnostics.
• High-volume smoke output highlights pinholes, cracked hoses, and loose fittings.
• Ceramic heating element maintains stable performance for repeated tests.

What features help it perform in a busy shop?

SM701B is engineered for durability and repeated use: the premium ceramic cartridge resists wear and delivers uniform smoke production while the compact housing and carry-friendly layout make it simple to move between bays. Controls are straightforward so technicians can set pressure and smoke output quickly.

• Premium ceramic cartridge for long-lasting, even heat and smoke generation.
• Built-in air compressor eliminates need for separate air source.
• Rugged chassis and intuitive controls for fast in-shop deployment.

How do you use the kit safely and effectively?

For best results, connect the smoke machine to the service port or sealed component, then apply low, controlled pressure while watching for visible smoke. Follow standard shop safety: work in a ventilated area, avoid direct inhalation, and let the unit cool before refilling or storing.

• Attach to service port or sealed opening using included adapters.
• Apply moderate pressure and observe leak points; avoid over-pressurizing.
• Use in ventilated spaces and follow basic personal protective measures.

What accessories and diagnostics does this tool support?

The SM701B typically ships with common adapters and hoses to reach EVAP, vacuum, and intake fittings on most vehicles. Its consistent smoke output helps reveal leaks that might not show up on pressure-only tests, making it a versatile addition to any diagnostic toolkit.

• Multiple adapter fittings for service ports, vacuum lines, and hoses.
• High-visibility smoke for quick visual confirmation of leak location.
• Works with a range of passenger and light-truck systems for broad utility.

Who this is for: The AutoLine Pro SM701B is aimed at automotive professionals, independent repair shops, and experienced DIYers who need a dependable smoke source with an integrated compressor for rapid leak detection. If you routinely diagnose EVAP or intake problems, perform vacuum system troubleshooting, or want a portable, shop-ready smoke machine, this model delivers consistent performance and durable components to support frequent use.