Solary SD302 Automotive Smoke Machine - 12V EVAP & Vacuum Leak Detector with Built-in Pump

Solary SD302 is a 12V automotive smoke machine and leak detector that pinpoints vacuum, EVAP, intake, exhaust and fuel-system leaks quickly using smoke and pressurized-air testing.

If you diagnose cars, motorcycles, trucks or boats, the Solary SD302 pairs an internal air pump, smoke generator and pressure gauge to reveal leaks in pipework and sealed systems without disassembling components. It produces dense, non-toxic smoke within seconds, offers both air and smoke modes, and includes overheating protection to keep the tool and operator safe during routine garage use.

How does this unit identify leaks in EVAP and vacuum systems?

The SD302 pressurizes the system while emitting visible smoke that escapes at leak points, making even small cracks or loose fittings visible. The integrated pressure gauge shows whether the system holds pressure or is losing it, so you get both visual and numerical confirmation.

• Use smoke mode to visually trace escaping smoke at joints, hoses and seals.
• Use air mode to pressurize and detect steady pressure loss on the gauge.
• Works on EVAP cans, fuel lines, intake boots, vacuum hoses and more.
• Produces dense smoke within ~20 seconds for fast diagnostics.

What features help me test safely and reliably in the shop or roadside?

Solary built the SD302 with a self-contained air pump and smoke generator so you don’t need extra compressors. The smoke formula is designed to be non-toxic for typical diagnostic use, and the unit includes an automatic overheat protector that pauses output until temperatures return to safe levels.

• Built-in air pump and generator—no external compressor required.
• Non-toxic diagnostic smoke suitable for vehicle interiors and engine bays.
• Overheat alarm and automatic shutdown protect the device and user.
• 12V DC operation runs from a vehicle cigarette socket or jump pack.

How do I use the dual air and smoke modes effectively?

Begin with air mode to pressurize the circuit and watch the gauge for pressure decay; this quickly indicates whether a leak exists. Switch to smoke mode to inject visible smoke and follow the trail to the leak’s exact location—use clamps or adapters as needed for sealed connections.

• Air mode: find pressure drops and narrow down affected sections.
• Smoke mode: visually confirm leak locations on hoses, seals, or fittings.
• Combine both modes to verify repairs and confirm airtightness afterwards.
• Adapters and fittings allow testing of fuel tanks, intakes, and other systems.

What maintenance and precautions should I follow?

Maintain adequate e-liquid for consistent smoke production and allow cool-down breaks during extended use to avoid triggering overheat protection. Keep the device clean, check hoses for wear, and store it upright in a dry place to protect internal components.

• Refill smoke fluid per manufacturer guidance to ensure steady output.
• Avoid prolonged continuous operation; allow cooldown when indicated.
• Inspect and replace worn hoses or seals before testing high-pressure systems.
• Operate in ventilated areas and follow local safety rules for shop work.

Who is this for: The Solary SD302 is designed for independent mechanics, mobile technicians, DIY enthusiasts and small repair shops that need a compact, portable diagnostic tool to find leaks in EVAP, vacuum, intake, exhaust and fuel systems. It’s valuable when you want fast visual confirmation of leaks, a numeric pressure check, and a single 12V-powered unit that’s ready for field or garage use.