Thikpo SMT-108-Pro
A budget gauge-and-flow-meter machine for vacuum and intake leaks. EVAP testing needs a separate regulator.
Amazon $93.99$93.99
The Thikpo SMT-108-Pro rates 3.4 among no EVAP mode stated automotive smoke machines; the Foxwell ST100 rates 3.4 among with an EVAP mode ones. The Thikpo SMT-108-Pro costs $16 less ($93.99 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
Scores side by side
These two sit in different type classes (no EVAP mode stated and with an EVAP mode), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Thikpo SMT-108-Pro | Foxwell ST100 |
|---|---|---|
| Overall rating | 3.4/5 | 3.4/5 |
| Value 30% | 75 $93.99 | 68 $109.99 |
| Pressure coverage 25% | 36 up to 15 PSI | 92 EVAP-safe low pressure, up to 17 PSI |
| Measurement 20% | 80 pressure gauge, flow meter | 0 no gauge or flow meter listed, scored as none |
| Features 15% | 45 built-in air pump, fluid included | 65 built-in air pump, air-only mode, EVAP adapter |
| Warranty 10% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Thikpo SMT-108-Pro | Foxwell ST100 | |
|---|---|---|
| Pressure and smoke | ||
| EVAP mode | No | Yes |
| Output pressure | 10-15 PSI | 0.5-17 PSI |
| Pressure display | Gauge | - |
| Flow meter | Yes | - |
| Air-only mode | - | Yes |
| Power and fluid | ||
| Air source | Built-in pump | Built-in pump |
| Power | - | 12V battery |
| Smoke fluid | maker fluid or baby oil | mineral oil |
| Fluid included | Yes | - |
| In the box | ||
| EVAP adapter | - | Yes |
| Cap plugs | 7 pieces | - |
| Warranty | 1 year | 1 year |