AutoLine Pro HyperSmoke
A low-cost machine with both an EVAP mode and a higher-pressure mode, for DIY owners chasing a check-engine light. Pick the Pro version if you want a gauge.
Amazon $61.99$61.99
The AutoLine Pro HyperSmoke is the better automotive smoke machine overall, rated 3.6 to 3.4. The AutoLine Pro HyperSmoke leads on warranty and value. The Foxwell ST100 wins on pressure coverage. The AutoLine Pro HyperSmoke costs $48 less ($61.99 vs $109.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Foxwell ST100
A compact two-pressure machine from a known scan-tool maker, for DIY owners who need both EVAP and boost testing.
Amazon $109.99$109.99
Which should you buy?
- Choose the AutoLine Pro HyperSmoke for warranty (3-year warranty vs 1-year warranty) and value ($61.99 vs $109.99).
- Choose the Foxwell ST100 for pressure coverage (EVAP-safe low pressure, up to 17 PSI vs EVAP-safe low pressure).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every with an EVAP mode automotive smoke machine; a clear win is highlighted. How we rank explains each one.
| Factor weight | AutoLine Pro HyperSmoke | Foxwell ST100 |
|---|---|---|
| Overall rating | 3.6/5 | 3.4/5 |
| Value 30% | 91 $61.99 | 68 $109.99 |
| Pressure coverage 25% | 50 EVAP-safe low pressure | 92 EVAP-safe low pressure, up to 17 PSI |
| Measurement 20% | 0 no gauge or flow meter | 0 no gauge or flow meter listed, scored as none |
| Features 15% | 60 built-in air pump, EVAP adapter, fluid included | 65 built-in air pump, air-only mode, EVAP adapter |
| Warranty 10% | 100 3-year warranty | 0 1-year warranty |
Specifications
| AutoLine Pro HyperSmoke | Foxwell ST100 | |
|---|---|---|
| Pressure and smoke | ||
| EVAP mode | Yes | Yes |
| Output pressure | - | 0.5-17 PSI |
| Pressure display | None | - |
| Air-only mode | - | Yes |
| Power and fluid | ||
| Air source | Built-in pump | Built-in pump |
| Power | - | 12V battery |
| Smoke fluid | maker fluid | mineral oil |
| Fluid included | Yes | - |
| In the box | ||
| EVAP adapter | Yes | Yes |
| Warranty | 3 years | 1 year |