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VIAIR 90111 Pressure Switch with Relay, 12V

VIAIR ★ 3.8/5 · ItemOracle Score Budget

$34 USD
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VIAIR 90111 Pressure Switch with Relay, Black, 7.3 x 3.5 x 2.3 inches

Pressure switch for 12V air compressors with built-in relay; turns on at 110 PSI and off at 145 PSI. Customer notes easy installation and good value, with some leakage concerns

Highlights

  • built-in relay to prolong life
  • pressure switch with 110/145 psi
  • 1/8" NPT M port connection

Pros

  • integrated relay for longer loads
  • easy installation
  • good value for money
  • compact fit (customer insight)

Cons

  • leakage issues reported
  • some users report limited durability (~1 year)
  • size could be more compact

Best For

  • mobile air setup
  • on-board air systems
  • DIY air compressor projects
  • 12-volt vehicle air systems
  • off-road vehicle recovery setups
  • truck or trailer air accessories

Features

  • Works with 12-volt systems and activates at 110 PSI to start the compressor
  • Shuts off at 145 PSI to stop the compressor operation
  • Built-in relay supports higher load capacity and extends component life
  • Includes 1/8" NPT M port pressure sensor connection
  • Compact enclosure dimensions 7.3 x 3.5 x 2.3 inches for versatile mounting

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