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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  • Noshok 628-10000-1-1-H-14-3-CH
    NOSHOK 628-10000-1-1-H-14-3-CH
    Order # 628-10000-1-1-H-14-3-CH Mfg # 628-10000-1-1-H-14-3-CH
  • Noshok 621
    NOSHOK 621-300-1-1-8-6
    Order # 621-300-1-1-8-6 Mfg # 621-300-1-1-8-6
    Special Price $522.55 Save 4 % Regular Price $544.33
  • Dwyer Instruments 43201B
    Dwyer Instruments 43201B
    Order # 43201B Mfg # 43201B
  • Dwyer Instruments MDS-7
    Dwyer Instruments MDS-7
    Order # MDS-7 Mfg # MDS-7
    $44.50

    • Rent from the Test and Measurement Equipment Experts

    Request a Rental Quote Call us at (800) 264-4059
    • check Dedicated rental experts are ready to help you find the right piece of equipment and determine the best course for rental
    • check Transcat provides consultative services on equipment selection, given your existing systems and operations
    • check Ready to use calibrated equipment is is provided quickly in a cost effective and flexible way
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    Request a Rental Quote Call us at (800) 264-4059
  • Ashcroft NPI-N4-D-L-S02-3000 Pressure Switch, 3000PSI
    Ashcroft NPI-N4-D-L-S02-3000PSI
    Order # NPI-N4-D-L-S02-3000 Mfg # NPI-N4-D-L-S02-3000PSI
    Special Price $956.03 Save 6 % Regular Price $1,017.06
  • Dwyer Instruments 645-2
    Dwyer Instruments 645-2
    Order # 645-2 Mfg # 645-2
    $939.40
  • Ashcroft LPDN4-KK-B-25-XK3-100PSI Pressure Switch,100PSI 1/4"NPTF,Narrow Deadband
    Ashcroft LPDN4-KK-B-25-XK3-100PSI
    Order # LPDN4-KK-B-25-XK3-100PSI Mfg # LPDN4-KK-B-25-XK3-100PSI
    Special Price $422.63 Save 6 % Regular Price $449.61
  • Low Range Differential Pressure Transmitter,0-5.0"w.c.,0.25%FS
    Dwyer Instruments 607-71
    Order # 607-71 Mfg # 607-71
    $1,393.45
  • Low Range Differential Pressure Transmitter,0-.25"w.c.
    Dwyer Instruments 607-1
    Order # 607-1 Mfg # 607-1
    $1,040.40
  • Dwyer Instruments 1950P-8-2F
    Dwyer Instruments 1950P-8-2F
    Order # 1950P-8-2F Mfg # 1950P-8-2F
    $446.50
  • MAGNEHELIC Diff/Press.Xmitter, 0-125Pa 605-125Pa
    Dwyer Instruments 605-125PA
    Order # 605-125PA Mfg # 605-125PA
    $526.75
  • Magnehelic? Diff.Press.Xmitter, 0-.25-0-0.25"w.c.,?0.5% accur.
    Dwyer Instruments 605-11
    Order # 605-11 Mfg # 605-11
    $603.15
  • Magnehelic? Diff.Press.Xmitter, 0-10"w.c.,?0.5% accuracy
    Dwyer Instruments 605-10
    Order # 605-10 Mfg # 605-10
    $526.75
  • Ashcroft B424V100PSI Pressure Switch, 100psi
    Ashcroft B424V100PSI
    Order # B424V100PSI Mfg # B424V100PSI
  • Ashcroft B424B-200PSI Pressure Switch, Weather Proof, 200PSI
    Ashcroft B424B-200PSI
    Order # B424B-200PSI Mfg # B424B-200PSI
  • Single/Dual Pressure Switch, 8.0-24"w.c.,.50min/1.20max DB
    Dwyer Instruments 1626-20
    Order # 1626-20 Mfg # 1626-20
    $546.05
  • Single/Dual Pressure Switch,2.0 11"wc,.25min/.65max Deadband
    Dwyer Instruments 1626-10
    Order # 1626-10 Mfg # 1626-10
    $546.05
  • Ashcroft B4-24-B-X06-200PSI Pressure Switch 200 psi
    Ashcroft B4-24-B-X06-200PSI
    Order # B4-24-B-X06-200PSI Mfg # B4-24-B-X06-200PSI
    Special Price $256.45 Save 6 % Regular Price $272.82
  • SMART Differential Press.Xmittr 0 to 150"W.C.
    Dwyer Instruments 3100D-3-FM-1-1-LCD
    Order # 3100D-3-FM-1-1-LCD Mfg # 3100D-3-FM-1-1-LCD
    $1,836.55
  • SMART Differential Press.Xmittr 0 to 30"W.C.
    Dwyer Instruments 3100D-2-FM-1-1-LCD
    Order # 3100D-2-FM-1-1-LCD Mfg # 3100D-2-FM-1-1-LCD
    $1,836.55
  • SMART Differential Press.Xmittr 0 to 6"W.C.
    Dwyer Instruments 3100D
    Order # 3100D-1-FM-1-1-LCD Mfg # 3100D-1-FM-1-1-LCD
    $2,208.60
  • TRANSMITTERS DIGITAL I.O./RS485
    TRANSMITTERS DIGITAL I.O./RS485
    Order # W1712
    Call for price
  • Dwyer Instruments 3005MRS
    Dwyer Instruments 3005MRS
    Order # 3005MRS Mfg # 3005MRS
    $774.05
  • Dwyer Instruments 1824
    Dwyer Instruments 1824
    Order # 1824-20-WP Mfg # 1824-20-WP
    $925.95
  • New
    Dwyer Instruments 1823-2 Low Differential Pressure Switch, 0.5 to 2.0 range
    Dwyer Instruments 1823-2 Low Differential Pressure Switch, 0.5 to 2.0 range
    Order # 1823-2 Mfg # 1823-2
    $127.55
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