ALT400 Rainco Automotive Leak Tester & Locator


  • Designed for detecting the leak of pipe systems in cars, motorcycles, such as fuel pipe, air intake system and cooling
  • It can change special oil (baby oil or mineral oil) into smoke, and blow smoke into sealed pipe system. You can find out leak point in pipe via the smoke and fix it where leak
  • It can produce smoke fast with large volume, which can effectively help technician improve working


  • Intake System Leak Test
  • Exhausts System Test
  • Fuel System Test
  • Coolant Tank Test
  • Turbo System or EVAP Test
  • Combustion Chamber Test
  • Leakage Quantity Test
  • Dual Mode (Smoke Mode & Air Mode)
  • Inbuilt mini air compressor, instant smoke generation
  • Self-protection system keeps machine away from overload
  • Easy operation and quick locating the leak
  • For Various Motor Vehicles


  • Voltage: DC12V (Optional AC100-240V Power supply)
  • Current: 6A
  • Test Pressure Range:

EVAP: 15 KPa         TURBO: 1.2 Bar

  • Air Flow: 1-25 L/Min
  • Oil Volume: 30 ML
  • Oil Consumption: 0.5 ML/Min
  • Test Hose Length: 2.5 M
  • Power Cable Length: 2 M

How To Use

  1. Open the engine cover, and hang the main unit under the
  2. Disconnect the pipe which needs to be connected with If the pipe’s two sides need to be disconnected, please make sure the other side needs to blocked with a rubber stopple.
  3. Make sure this side with proper taper stopple/pipe, and connect it with smoke output tube.
  4. Connect the main unit with DC12V battery: Red with positive, Black with
  5. Turn on the power switch, the main unit starts to
  6. In 2 minutes, the pipe will be filled with smoke. Check and find the leak points. Please use light or head lamp if
  7. After finding out leak location, then connect pipes or wires

Packing Lists

Main Unit *1 Hook *1

Smoke Output Tube *1 Power Cable *1

Cap Stopples *23 (Different size) Taper Stopple *1

Universal Intake Adaptor *1

Turbo or EVAP Service Port Adaptor *1 Valve Core Tool (For EVAP model only) *1 Oil Bottle *1

User Manual *1