Viair Pressure Switch with Leads

Max Load of 30 Amps & 1/8" NPT


5 reviews
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This pressure switch with preattached wires and weatherproof coating is essential to the operation of any 12 or 24-volt air compressor. The switch turns the compressor on automatically when your pressure drops below a specific pressure and then off again once you reach the max pressure set on your pressure switch.

This pressure switch is rated for both 12 and 24-volt applications making it perfect for automotive or marine use. The switch is rated for 10,000 cycles and is extremely durable.

We recommend purchasing a relay with this pressure switch when using it with an air compressor. By installing a relay you can alleviate the burden of the compressor from the pressure switch ensuring an even longer lifespan!

  • High Accuracy
  • Perfect For 12 or 24 Volt Applications
  • Pre Wired for Easy Installation
  • Viair Pressure Switch with Leads
  • Part Number: PS-105S / PS-120S / PS-145S / PS-175S / PS-200S
  • Ports: 1x ⅛″ NPT male
  • Pressure Range:
    Part # Turn-Off Pressure Restart Pressure
    PS-105S 105 PSI 85 PSI
    PS-120S 120 PSI 90 PSI
    PS-145S 145 PSI 110 PSI
    PS-175S 175 PSI 145 PSI
    PS-200S 200 PSI 165 PSI
  • Voltage: 12 or 24 Volts DC
  • Max Amps: 30 Amps
  • Money-Back Guarantee/Refund Policy
    All merchandise unless otherwise indicated may be returned within 30 days from the shipment arrival date for a refund. A Returned Merchandise Authorization (RMA) number is required for all returns. A 15% restocking fee may apply. Additional deductions may be made to reflect the products current market value. These terms apply to all refunds. Most products are shipped with a refund/replacement guarantee period unless otherwise noted in the product listing. Customers must inform of any order discrepancy within 7 days from the invoice date so that we may investigate and resolve the situation accordingly.
  • Warranty
    This product is backed by Viair's One-Year Manufacturer's Defect Warranty!
  • Satisfaction Guarantee offers our customers a 30-day satisfaction replacement or refund guarantee on all purchases, except when otherwise noted in the product listing.
  • Cross-Shipments will not cross-ship returned merchandise.
  • Physical Damage Policy
    Physical damage to any product purchased at will effectively void warranty coverage. Physical damage includes but is not limited to improper handling and/or any other type of damage sustained by irregular usage.

Warnings & Notices

Safety warning icon

This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to

Customer Reviews

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Sam S.
United States United States


Great service good people good product



I've had my horn for over 7 years. It wasn't working for about 6 months till I repaired it. This was the first and only problem I've had with it. And after not having my horn work for that long was killing me. I only use it to voice my dissatisfaction with other drivers and pedestrians. An awesome investment.


Love the stuff

Had your horns etc for 3 years works great


Had to figure out why it stopped working?

These guys know there stuff .walked me threw finding the problem .And had me blowing in 3 days thanks hornblasters.


Good stuff

Worked as designed.