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cupeohome Automotive Smoke Machine Leak Detector with Built-in Air Pump 12V
Item Description

About this item

  • 【Built-in Air Pump】The C4 automotive smoke machine has built-in air pump. You don't need to connect it to an additional air pump or purchase one. Just add 15 mL of baby oil or mineral oil to start testing anywhere. It also has function of overheat and low temperature protection. When temperature exceeds 75℃ or below -20℃, machine will cut off the power to protect itself. You can wait for the temperature becomes normal and continue to use.
  • 【Universal Compatibility】C4 EVAP smoke machine generates massive smoke quickly, and easily checks car's sealing and leakage. It can be used to test the leak of EVAP system, EGR system, crankcase system, turbo system, fuel tank system, cooling system, intake system, exhaust system, etc. It has built-in pressure regulator which is important for protecting EVAP system from damage. Note: Not fir for air conditioning system.
  • 【Oil Meter and Tips】The car leak detector has an oil meter with min and max lines, convenient to observe oil level. We suggest to add less than 20ml test oil. If add to much oil, the machine may not generate smoke but spray oil out from the hose. Package includes an oil bottle, but not includes the test oil. Note: Do not fill oil while working.
  • 【Easy Operation】Stop the engine. Prepare test oil in advance. Add 10-15ml test oil into the oil tank. Connect the smoke tube to the car's pipeline or anywhere you want to test. Connect the smoke machine to DC12V battery. Turn on the machine and wait for the smoke filling the system. Observe to find the leak point. Note: Automotive smoke machine can't be connected to the 12V power supply in the office, or it cannot output the smoke.It just support a 12V battery with a current range of 6A-8A (Ordinary car batteries are eligible).

Item Description

About this item

  • 【Built-in Air Pump】The C4 automotive smoke machine has built-in air pump. You don't need to connect it to an additional air pump or purchase one. Just add 15 mL of baby oil or mineral oil to start testing anywhere. It also has function of overheat and low temperature protection. When temperature exceeds 75℃ or below -20℃, machine will cut off the power to protect itself. You can wait for the temperature becomes normal and continue to use.
  • 【Universal Compatibility】C4 EVAP smoke machine generates massive smoke quickly, and easily checks car's sealing and leakage. It can be used to test the leak of EVAP system, EGR system, crankcase system, turbo system, fuel tank system, cooling system, intake system, exhaust system, etc. It has built-in pressure regulator which is important for protecting EVAP system from damage. Note: Not fir for air conditioning system.
  • 【Oil Meter and Tips】The car leak detector has an oil meter with min and max lines, convenient to observe oil level. We suggest to add less than 20ml test oil. If add to much oil, the machine may not generate smoke but spray oil out from the hose. Package includes an oil bottle, but not includes the test oil. Note: Do not fill oil while working.
  • 【Easy Operation】Stop the engine. Prepare test oil in advance. Add 10-15ml test oil into the oil tank. Connect the smoke tube to the car's pipeline or anywhere you want to test. Connect the smoke machine to DC12V battery. Turn on the machine and wait for the smoke filling the system. Observe to find the leak point. Note: Automotive smoke machine can't be connected to the 12V power supply in the office, or it cannot output the smoke.It just support a 12V battery with a current range of 6A-8A (Ordinary car batteries are eligible).

Shipping Policy

Orders are typically dispatched within 24 hours after payment confirmation. We aim to process and ship items daily; however, dispatch times may vary and are not guaranteed, particularly during weekends or public holidays.

Courier shipments may require additional handling time, as collections often need to be scheduled at least 24 hours in advance. Please note that most courier services do not operate over weekends, so orders placed later in the week (for example, Thursday onward) may be collected on the next working day.

While courier delivery options may be available, some locations may fall outside standard delivery zones or incur additional surcharges. This can include remote or extended areas such as the Isle of Man, Channel Islands, Northern Ireland, Scottish Highlands, and similar regions. If your address falls within these areas, you may be asked to select an alternative delivery method or contact us for a customized shipping quotation.

We are happy to combine shipping for multiple purchases where possible. Please wait for a combined invoice or request an updated total before completing payment.

Returns

We want you to shop with confidence. If you're not completely satisfied with your purchase, we accept returns within 30 days of delivery.

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Item Condition Guide

We aim to be fully transparent about the condition of every item we sell. Please review the definitions below before purchasing:

New – Other:

Items listed as New-Other are in excellent, like-new condition but may not come in their original retail packaging. This could include:

  • Opened box items
  • Display units
  • Customer returns that have not been used
  • Items with minor cosmetic marks (if any, will be shown in photos)

All items are fully tested (where applicable) and confirmed to be in perfect working condition.

Parts Only / Not Working:

Items listed as Parts Only are sold strictly for spares, repair, or refurbishment.

  • Not fully functional or may have known faults
  • May be incomplete, damaged, or missing components
  • No guarantee of working condition

These items are non-returnable unless stated otherwise, so please review the listing carefully before purchase.

Used:

Items listed as Used have been previously owned and may show signs of wear such as light scratches, marks, or cosmetic imperfections.

  • Fully functional and tested before dispatch
  • Condition varies - detailed in listing description and images
  • May not include original packaging or accessories unless stated

We strongly recommend reviewing all photos and descriptions carefully to understand the exact condition before purchasing.