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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  1. 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 $192.55 Regular Price $215.14
    Ashcroft Pressure Switch, 30psi Buna-N, 1/4npt Female Learn More
  2. 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
    $824.00
    Gas/Differential Pressure Sw. man. reset, SPST NC, 0.5-5 psig Learn More
  3. Dwyer Instruments A3000-3KPA
    Dwyer Instruments A3000-3KPA PHOTOHELIC Pressure Switch/Gage Range 0-3 kPa.
    Order #: A3000-3KPA
    Mfg #: A3000-3KPA
    Availability: In stock
    $582.00
    PHOTOHELIC Pressure Switch/Gage Range 0-3 kPa. Learn More
  4. Dwyer Instruments DXW-11-153-1
    Dwyer Instruments DXW-11-153-1 Differential Pressure Switch 1/4" NPT, SPDT, 2.5 to 10 psi
    Order #: DXW-11-153-1
    Mfg #: DXW-11-153-1
    Availability: In stock
    $100.00
    Differential Pressure Switch 1/4" NPT, SPDT, 2.5 to 10 psi Learn More
  5. Dwyer Instruments ADPS-05-2-N
    Dwyer Instruments ADPS-05-2-N Differential Pressure Switch 0.80-4.00 in H2O,M20 connection
    Order #: ADPS-05-2-N
    Mfg #: ADPS-05-2-N
    Availability: In stock
    $25.25
    Differential Pressure Switch 0.80-4.00 in H2O,M20 connection Learn More
  6. Ashcroft B4-20-S-XFM-1000PSI Pressure Switch,1000PSI
    Ashcroft B4-20-S-XFM-1000PSI Pressure Switch,1000PSI
    Order #: B4-20-S-XFM-1000PSI
    Mfg #: B4-20-S-XFM-1000PSI
    Availability: In stock
    Special Price $249.04 Regular Price $278.26
    Pressure Switch,1000PSI Learn More
  7. 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
    $1,180.00
    Differential pressure transmitter, range 0-25.0" w.c. Learn More
  8. 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: Ships in 3-4 weeks
    $311.00
    EP Differential Pressure Switch 3/11"WC,UL/FM/CSA,SPDT Learn More
  9. Ashcroft B4-64-S-X07-400KPA Pressure Switch, 400KPa
    Ashcroft B4-64-S-X07-400KPA Pressure Switch, 400KPa
    Order #: B4-64-S-X07-400KPA
    Mfg #: B4-64-S-X07-400KPA
    Availability: Ships in 3-4 weeks
    Special Price $326.48 Regular Price $364.79
    Pressure Switch, 400KPa Learn More
  10. Dwyer A3030 PHOTOHELIC Pressure Switch/Gage
    Dwyer Instruments A3030 Pressure Switch/Gage 0-30Wc
    Order #: A3030
    Mfg #: A3030
    Availability: Ships in 3-4 weeks
    $582.00
    Pressure Switch/Gage 0-30Wc Learn More
  11. Magnehelic? Diff.Press.Xmitter, 0-.25-0-0.25"w.c.,?0.5% accur.
    Dwyer Instruments 605-11 Magnehelic Diff.Press.Xmitter 0-.25-0-0.25"w.c.,0.5%
    Order #: 605-11
    Mfg #: 605-11
    Availability: Ships in 3-4 weeks
    $473.00
    Magnehelic Diff.Press.Xmitter 0-.25-0-0.25"w.c.,0.5% Learn More
  12. Dwyer Instruments A3020
    Dwyer Instruments A3020 Pressure Switch/Gage 0-20Wc
    Order #: A3020
    Mfg #: A3020
    Availability: Ships in 3-4 weeks
    $582.00
    Pressure Switch/Gage 0-20Wc Learn More
  13. 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
    $448.00
    Differential Pressure Switch 120 VAC, .15-.50 in H2O Learn More
  14. Magnehelic? Diff.Press.Xmitter, 0-10"w.c.,?0.5% accuracy
    Dwyer Instruments 605-10 Magnehelic Diff.Press.Xmitter 0-10"w.c.,0.5%
    Order #: 605-10
    Mfg #: 605-10
    Availability: Ships in 3-4 weeks
    $413.00
    Magnehelic Diff.Press.Xmitter 0-10"w.c.,0.5% Learn More
  15. Dwyer Instruments 650-3
    Dwyer Instruments 650-3 Temperature Transmitter Stocked Range 0 to 100C
    Order #: 650-3
    Mfg #: 650-3
    Availability: Ships in 3-4 weeks
    $373.00
    Temperature Transmitter Stocked Range 0 to 100C Learn More
  16. Dwyer Instruments BDPA-03-2-N
    Dwyer Instruments BDPA-03-2-N Adjustable Differential Press. Alarm, 0.20 to 2.00 in H2O
    Order #: BDPA-03-2-N
    Mfg #: BDPA-03-2-N
    Availability: Ships in 3-4 weeks
    $122.00
    Adjustable Differential Press. Alarm, 0.20 to 2.00 in H2O Learn More
  17. Dwyer Instruments EDPS-06-1-N
    Dwyer Instruments EDPS-06-1-N Adj. Differential Pressure Sw. 2.00 to 10.00 in H2O, 1/2" NPT
    Order #: EDPS-06-1-N
    Mfg #: EDPS-06-1-N
    Availability: Ships in 3-4 weeks
    $33.00
    Adj. Differential Pressure Sw. 2.00 to 10.00 in H2O, 1/2" NPT Learn More
  18. Dwyer Instruments EDPS-08-2-N
    Dwyer Instruments EDPS-08-2-N Adj. Differential Pressure Sw. 0.08 to 1.20 in H2O, M20
    Order #: EDPS-08-2-N
    Mfg #: EDPS-08-2-N
    Availability: Ships in 3-4 weeks
    $33.00
    Adj. Differential Pressure Sw. 0.08 to 1.20 in H2O, M20 Learn More
  19. 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
    Special Price $482.80 Regular Price $643.73
    Digital Pressure Switch for Single-line Lubrication Systems Learn More
  20. Meriam 1226
    Meriam 1226 Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS
    Order #: Z1226-2-A
    Mfg #: Z1226-2-A
    Availability: Ships in 3-4 weeks
    Special Price $3,381.00 Regular Price $3,450.00
    Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS Learn More
  21. 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
    Special Price $176.71 Regular Price $176.72
    3-Pole,1/4"DIN Selector Switch Learn More
  22. Dwyer APS-550 Switch, point range 15-485 inc, 20-500
    Dwyer Instruments APS-550 Swch, pt rg 15-485 inc, 20-500 dec, +/-10.0 rep, 5-22 psi dbd.
    Order #: APS-550
    Mfg #: APS-550
    Availability: Ships in 3-4 weeks
    $162.36
    Swch, pt rg 15-485 inc, 20-500 dec, +/-10.0 rep, 5-22 psi dbd. Learn More
  23. 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
    $162.36
    Sch, pt rg 7.5-242 inc, 9.7-250 dec, +/-5.0 rep, 2.5-9psi ddbd Learn More
  24. Dwyer APS-350 Switch, point range 3-96.5 inc, 4.5-100
    Dwyer Instruments APS-350 Swch, pt rg 3-96.5 inc, 4.5-100 dec, +/-2.0 rep, 1.6-4 psi dbn
    Order #: APS-350
    Mfg #: APS-350
    Availability: Ships in 3-4 weeks
    $162.36
    Swch, pt rg 3-96.5 inc, 4.5-100 dec, +/-2.0 rep, 1.6-4 psi dbn Learn More
  25. Dwyer APS-250 Switch, point range 2.0-48 inc, 3.0-50
    Dwyer Instruments APS-250 Swch,pt rg 2.0-48 inc, 3.0-50 dec, +/-1.0 rep, 1-1.7 psi dbnd
    Order #: APS-250
    Mfg #: APS-250
    Availability: Ships in 3-4 weeks
    $162.36
    Swch,pt rg 2.0-48 inc, 3.0-50 dec, +/-1.0 rep, 1-1.7 psi dbnd Learn More
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