AutoLine Pro Model 703B
The cheapest machine here that covers both EVAP and boost leaks. It suits DIY owners who can do without a gauge.
Amazon $62.18$62.18
The AutoLine Pro Model 703B is the better automotive smoke machine overall, rated 3.9 to 3.4. The AutoLine Pro Model 703B leads on value, warranty and features. The AutoLine Pro Model 703B costs $311.81 less ($62.18 vs $373.99).
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.
Ancel L5000 PRO
The L5000 with a vacuum test mode, for technicians who chase intake leaks from both directions.
Amazon $373.99$373.99
Which should you buy?
- Choose the AutoLine Pro Model 703B for value ($62.18 vs $373.99), warranty (3-year warranty vs 1-year warranty) and features (built-in air pump, air-only mode vs built-in air pump).
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 Model 703B | Ancel L5000 PRO |
|---|---|---|
| Overall rating | 3.9/5 | 3.4/5 |
| Value 30% | 91 $62.18 | 19 $373.99 |
| Pressure coverage 25% | 100 EVAP-safe low pressure, up to 20 PSI | 100 EVAP-safe low pressure, up to 20 PSI |
| Measurement 20% | 0 no gauge or flow meter listed, scored as none | 100 digital pressure display, flow meter |
| Features 15% | 50 built-in air pump, air-only mode | 30 built-in air pump |
| Warranty 10% | 100 3-year warranty | 0 1-year warranty |
Specifications
| AutoLine Pro Model 703B | Ancel L5000 PRO | |
|---|---|---|
| Pressure and smoke | ||
| EVAP mode | Yes | Yes |
| Output pressure | 1-20 PSI | 0.5-20 PSI |
| Pressure display | - | Digital |
| Flow meter | - | Yes |
| Air-only mode | Yes | - |
| Vacuum test | - | Yes |
| Power and fluid | ||
| Air source | Built-in pump | Built-in pump |
| Power | 12V battery | - |
| In the box | ||
| Warranty | 3 years | 1 year |