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 1-25 of 272
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  1. Clearance
    Mid-West Instrument 120AA
    Mid-West Instrument 120AA Piston Differential Pressure Switch,15PSID
    Order #: 120AA-00-ACA-15 PSID
    Mfg #: 120AA-00-ACA-15 PSID
    Availability: In stock
    Special Price $156.26 Regular Price $278.00
    Piston Differential Pressure Switch,15PSID Learn More
  2. Ashcroft B4
    Ashcroft B420B/30PSI Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female
    Order #: B420B/30PSI
    Mfg #: B420B/30PSI
    Availability: In stock
    Special Price $223.99 Regular Price $238.29
    Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female Learn More
  3. Dwyer Instruments DA-41-153-9E
    Dwyer Instruments DA-41-153-9E Bourdon Tube Pressure Switch 316SS tube, range 10-300 psig
    Order #: DA-41-153-9E
    Mfg #: DA-41-153-9E
    Availability: In stock
    $1,449.75
    Bourdon Tube Pressure Switch 316SS tube, range 10-300 psig Learn More
  4. Clearance
    Dwyer Instruments PR-2-P2
    Dwyer Instruments PR-2-P2 Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig
    Order #: PR-2-P2
    Mfg #: PR-2-P2
    Availability: In stock
    Special Price $376.42 Regular Price $910.00
    Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig Learn More
  5. Dwyer Instruments 1950
    Dwyer Instruments 1950 Differential Pressure Switch 24VDC,.4-1.6"H2O
    Order #: 1950G-1-B-24-NA
    Mfg #: 1950G-1-B-24-NA
    Availability: In stock
    $530.40
    Differential Pressure Switch 24VDC,.4-1.6"H2O Learn More
  6. Dwyer Instruments 1950-10-2F
    Dwyer Instruments 1950-10-2F EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT
    Order #: 1950-10-2F
    Mfg #: 1950-10-2F
    Availability: In stock
    $333.85
    EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT Learn More
  7. Lincoln Industrial 234-10330-4
    Lincoln Industrial 234-10330-4 Digital Pressure Switch for Single-line Lubrication Systems
    Order #: 234-10330-4
    Mfg #: 234-10330-4
    Availability: Ships in 3-4 weeks
    $759.31
    Digital Pressure Switch for Single-line Lubrication Systems Learn More
  8. Meriam 1226
    Meriam 1226 Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS
    Order #: Z1226-2-A
    Mfg #: Z1226-2-A
    Availability: Please contact Transcat Customer Service for availability.
    Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS Learn More
  9. Newport Electronics SW143-8-M
    Omega Engineering SW143 3-Pole,1/4"DIN Selector Switch
    Order #: SW143-8-M
    Mfg #: SW143-8-M
    Availability: Ships in 3-4 weeks
    $270.85
    3-Pole,1/4"DIN Selector Switch Learn More
  10. Dwyer APS-450 Switch, point range 7.5-242 inc, 9.7-250
    Dwyer Instruments APS-450 Sch, pt rg 7.5-242 inc, 9.7-250 dec, +/-5.0 rep, 2.5-9psi ddbd
    Order #: APS-450
    Mfg #: APS-450
    Availability: Ships in 3-4 weeks
    $177.00
    Sch, pt rg 7.5-242 inc, 9.7-250 dec, +/-5.0 rep, 2.5-9psi ddbd Learn More
  11. Dwyer 608-17 Differential pressure transmitter
    Dwyer Instruments 608-17 Differential pressure transmitter, range 0-25.0" w.c.
    Order #: 608-17
    Mfg #: 608-17
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-25.0" w.c. Learn More
  12. Dwyer 608-16 Differential pressure transmitter
    Dwyer Instruments 608-16 Differential pressure transmitter, range 0-10.0" w.c.
    Order #: 608-16
    Mfg #: 608-16
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-10.0" w.c. Learn More
  13. Dwyer 608-15B Differential pressure transmitter
    Dwyer Instruments 608-15B Differential pressure trnsmttr, range 5.0-0-5.0" w.c.
    Order #: 608-15B
    Mfg #: 608-15B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmttr, range 5.0-0-5.0" w.c. Learn More
  14. Dwyer 608-15 Differential pressure transmitter
    Dwyer Instruments 608-15 Differential pressure transmitter, range 0-5.0" w.c.
    Order #: 608-15
    Mfg #: 608-15
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-5.0" w.c. Learn More
  15. Dwyer 608-14B Differential pressure transmitter
    Dwyer Instruments 608-14B Differential pressure trnsmittr, rnge 2.0-0-2.0" w.c.
    Order #: 608-14B
    Mfg #: 608-14B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmittr, rnge 2.0-0-2.0" w.c. Learn More
  16. Dwyer 608-14 Differential pressure transmitter
    Dwyer Instruments 608-14 Differential pressure transmitter, range 0-2.0" w.c.
    Order #: 608-14
    Mfg #: 608-14
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-2.0" w.c. Learn More
  17. Dwyer 608-13B Differential pressure transmitter
    Dwyer Instruments 608-13B Differential pressure trnsmttr, rng 1.0-0-1.0" w.c.
    Order #: 608-13B
    Mfg #: 608-13B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmttr, rng 1.0-0-1.0" w.c. Learn More
  18. Dwyer 608-13 Differential pressure transmitter
    Dwyer Instruments 608-13 Differential pressure transmitter, range 0-1.0" w.c.
    Order #: 608-13
    Mfg #: 608-13
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure transmitter, range 0-1.0" w.c. Learn More
  19. Dwyer 608-12B Differential pressure transmitter
    Dwyer Instruments 608-12B Differential pressure trnsmttr, range 0.5-0-0.5" w.c.
    Order #: 608-12B
    Mfg #: 608-12B
    Availability: Ships in 3-4 weeks
    $1,714.00
    Differential pressure trnsmttr, range 0.5-0-0.5" w.c. Learn More
  20. Dwyer 608-12 Differential pressure transmitter
    Dwyer Instruments 608-12 Differential pressure transmitter, range 0-0.5" w.c.
    Order #: 608-12
    Mfg #: 608-12
    Availability: Ships in 3-4 weeks
    $1,789.00
    Differential pressure transmitter, range 0-0.5" w.c. Learn More
  21. Dwyer 608-11B Differential pressure transmitter
    Dwyer Instruments 608-11B Differential pressure trnsmttr, rng 0.25-0-0.25" w.c.
    Order #: 608-11B
    Mfg #: 608-11B
    Availability: Ships in 3-4 weeks
    $1,788.00
    Differential pressure trnsmttr, rng 0.25-0-0.25" w.c. Learn More
  22. Dwyer 608-11 Differential pressure transmitter
    Dwyer Instruments 608-11 Differential pressure transmitter, range 0-0.25" w.c.
    Order #: 608-11
    Mfg #: 608-11
    Availability: Ships in 3-4 weeks
    $1,838.00
    Differential pressure transmitter, range 0-0.25" w.c. Learn More
  23. Dwyer 608-10B Differential pressure transmitter
    Dwyer Instruments 608-10B Differential pressure trnsmtter, rnge 0.1-0-0.1" w.c.
    Order #: 608-10B
    Mfg #: 608-10B
    Availability: Ships in 3-4 weeks
    $1,934.00
    Differential pressure trnsmtter, rnge 0.1-0-0.1" w.c. Learn More
  24. Dwyer 608-10 Differential pressure transmitter
    Dwyer Instruments 608-10 Differential pressure transmitter, range 0-0.1" w.c.
    Order #: 608-10
    Mfg #: 608-10
    Availability: Ships in 3-4 weeks
    $1,934.00
    Differential pressure transmitter, range 0-0.1" w.c. Learn More
  25. Dwyer 608-07 Differential pressure transmitter
    Dwyer Instruments 608-07 Differential pressure transmitter, range 0-25.0" w.c.
    Order #: 608-07
    Mfg #: 608-07
    Availability: Ships in 3-4 weeks
    $1,387.00
    Differential pressure transmitter, range 0-25.0" w.c. Learn More
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