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Pressure Switches

Transcat distributes the most reliable pressure switches for general purpose, air/water, gas and differential applications. The pressure switch will detect changes and open or close an electrical contact according to a predetermined set point. Differential switches sense pressure from both a low and a high pressure port and respond to the difference. Switches may be categorized according to their technology, such as diaphragm or piston. Our pressure device selection features switches with a wide scope of ranges to support virtually every application. We also offer Dwyer switch/gage combination instruments that measure and control positive, negative or differential pressures of air and gases.

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Showing 76-100 of 241
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  1. Dwyer Instruments A3320
    Dwyer Instruments A3320 PHOTOHELIC Pressure Switch/Gage Range 10-0-10" w.c.
    Order #: A3320
    Mfg #: A3320
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 10-0-10" w.c. Learn More
  2. Dwyer Instruments A3310
    Dwyer Instruments A3310 PHOTOHELIC Pressure Switch/Gage Range 5-0-5" w.c.
    Order #: A3310
    Mfg #: A3310
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 5-0-5" w.c. Learn More
  3. Dwyer Instruments A3304
    Dwyer Instruments A3304 PHOTOHELIC Pressure Switch/Gage Range 2-0-2" w.c.
    Order #: A3304
    Mfg #: A3304
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 2-0-2" w.c. Learn More
  4. Dwyer Instruments A3302
    Dwyer Instruments A3302 PHOTOHELIC Pressure Switch/Gage Range 1-0-1" w.c.
    Order #: A3302
    Mfg #: A3302
    Availability: Ships in 3-4 weeks
    $802.05
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    PHOTOHELIC Pressure Switch/Gage Range 1-0-1" w.c. Learn More
  5. Dwyer Instruments A3025
    Dwyer Instruments A3025 PHOTOHELIC Pressure Switch/Gage Range 0-25" w.c.
    Order #: A3025
    Mfg #: A3025
    Availability: Ships in 3-4 weeks
    $780.20
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    PHOTOHELIC Pressure Switch/Gage Range 0-25" w.c. Learn More
  6. Dwyer Instruments A3000-200CM
    Dwyer Instruments A3000-200CM Photohelic Pressure Switch/Gage Range 0-200 cm w.c.
    Order #: A3000-200CM
    Mfg #: A3000-200CM
    Availability: Ships in 3-4 weeks
    $780.20
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    Photohelic Pressure Switch/Gage Range 0-200 cm w.c. Learn More
  7. Dwyer Instruments A1F-O-SS-1-3
    Dwyer Instruments A1F-O-SS-1-3 Low Cost OEM Pressure Switch Range 8-225 psig(0.55-15.5 bar)
    Order #: A1F-O-SS-1-3
    Mfg #: A1F-O-SS-1-3
    Availability: Ships in 3-4 weeks
    $211.20
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    Low Cost OEM Pressure Switch Range 8-225 psig(0.55-15.5 bar) Learn More
  8. Dwyer Instruments 1950G-00-B-120-NA
    Dwyer Instruments 1950G-00-B-120-NA Explosion-proof Differential Pressure Switch,120VAC
    Order #: 1950G-00-B-120-NA
    Mfg #: 1950G-00-B-120-NA
    Availability: Ships in 3-4 weeks
    $618.80
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    Explosion-proof Differential Pressure Switch,120VAC Learn More
  9. Dwyer Instruments 1950G-5-B-24-NA
    Dwyer Instruments 1950G-5-B-24-NA Differential Pressure Switch 24 VDC, 1.4-5.5 in H2O
    Order #: 1950G-5-B-24-NA
    Mfg #: 1950G-5-B-24-NA
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch 24 VDC, 1.4-5.5 in H2O Learn More
  10. Dwyer Instruments 1950G-5-B-120-NA
    Dwyer Instruments 1950G-5-B-120-NA Differential Pressure Switch 120 VAC, 1.4-5.5 in H2O
    Order #: 1950G-5-B-120-NA
    Mfg #: 1950G-5-B-120-NA
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch 120 VAC, 1.4-5.5 in H2O Learn More
  11. Dwyer Instruments 1950G-20-B-24-NA
    Dwyer Instruments 1950G-20-B-24-NA Differential Pressure Switch 24 VDC, 4-20 in H2O
    Order #: 1950G-20-B-24-NA
    Mfg #: 1950G-20-B-24-NA
    Availability: Ships in 3-4 weeks
    $618.80
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    Differential Pressure Switch 24 VDC, 4-20 in H2O Learn More
  12. Dwyer Instruments 1950G-20-B-120-NA
    Dwyer Instruments 1950G-20-B-120-NA Differential Pressure Switch 120 VAC, 4-20 in H2O
    Order #: 1950G-20-B-120-NA
    Mfg #: 1950G-20-B-120-NA
    Availability: Ships in 3-4 weeks
    $618.80
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    Differential Pressure Switch 120 VAC, 4-20 in H2O Learn More
  13. Dwyer Instruments 1950G-10-B-24-NA
    Dwyer Instruments 1950G-10-B-24-NA Differential Pressure Switch 24 VDC, 3-11 in H2O
    Order #: 1950G-10-B-24-NA
    Mfg #: 1950G-10-B-24-NA
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch 24 VDC, 3-11 in H2O Learn More
  14. Dwyer Instruments 1950G-10-B-120-NA
    Dwyer Instruments 1950G-10-B-120-NA Differential Pressure Switch 120 VAC, 3-11 in H2O
    Order #: 1950G-10-B-120-NA
    Mfg #: 1950G-10-B-120-NA
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch 120 VAC, 3-11 in H2O Learn More
  15. Dwyer Instruments 1950G-1-B-120-NA
    Dwyer Instruments 1950G-1-B-120-NA Differential Pressure Switch 120 VAC, .4-1.6 in H2O
    Order #: 1950G-1-B-120-NA
    Mfg #: 1950G-1-B-120-NA
    Availability: Ships in 3-4 weeks
    $618.80
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    Differential Pressure Switch 120 VAC, .4-1.6 in H2O Learn More
  16. Dwyer Instruments 1950G
    Dwyer Instruments 1950G Differential Pressure Switch 120 VAC, .15-.50 in H2O
    Order #: 1950G-0-B-120-NA
    Mfg #: 1950G-0-B-120-NA
    Availability: Ships in 3-4 weeks
    $618.80
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    Differential Pressure Switch 120 VAC, .15-.50 in H2O Learn More
  17. Dwyer Instruments 1921-5
    Dwyer Instruments 1921-5 Differential Pressure Switch HP back port, 1.4 - 5.5 in H2O
    Order #: 1921-5
    Mfg #: 1921-5
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch HP back port, 1.4 - 5.5 in H2O Learn More
  18. Dwyer Instruments 1921-20
    Dwyer Instruments 1921-20 Differential Pressure Switch HP back port, 4.0 - 20.0 in H2O
    Order #: 1921-20
    Mfg #: 1921-20
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch HP back port, 4.0 - 20.0 in H2O Learn More
  19. Dwyer Instruments 1921-10
    Dwyer Instruments 1921-10 Differential Pressure Switch HP back port, 3.0 - 11.0 in H2O
    Order #: 1921-10
    Mfg #: 1921-10
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch HP back port, 3.0 - 11.0 in H2O Learn More
  20. Dwyer Instruments 1921-1
    Dwyer Instruments 1921-1 Differential Pressure Switch HP back port, 0.4 - 1.6 in H2O
    Order #: 1921-1
    Mfg #: 1921-1
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch HP back port, 0.4 - 1.6 in H2O Learn More
  21. Dwyer Instruments 1921-0
    Dwyer Instruments 1921-0 Differential Pressure Switch HP back port,0.15 - 0.55 in H2O
    Order #: 1921-0
    Mfg #: 1921-0
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch HP back port,0.15 - 0.55 in H2O Learn More
  22. Dwyer Instruments 1920-5
    Dwyer Instruments 1920-5 Differential Pressure Switch w/ Conduit,HP back port,1.4-5.5 i
    Order #: 1920-5
    Mfg #: 1920-5
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch w/ Conduit,HP back port,1.4-5.5 i Learn More
  23. Dwyer Instruments 1920-20
    Dwyer Instruments 1920-20 Differential Pressure Switch w/ Conduit,HP back port,4-20in H2
    Order #: 1920-20
    Mfg #: 1920-20
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch w/ Conduit,HP back port,4-20in H2 Learn More
  24. Dwyer Instruments 1920-10
    Dwyer Instruments 1920-10 Differential Pressure Switch w/ Conduit,HP back port,3-11in H2
    Order #: 1920-10
    Mfg #: 1920-10
    Availability: Please contact Transcat Customer Service for availability.
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    Differential Pressure Switch w/ Conduit,HP back port,3-11in H2 Learn More
  25. Dwyer Instruments 1920-1
    Dwyer Instruments 1920-1 Differential Pressure Switch w/ Conduit,HP back port,0.4-1.6 i
    Order #: 1920-1
    Mfg #: 1920-1
    Availability: Ships in 3-4 weeks
    $123.95
    Save item Compare
    Differential Pressure Switch w/ Conduit,HP back port,0.4-1.6 i Learn More
Showing 76-100 of 241
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