Switches

Transcat is your premier provider of switches. We carry an extensive inventory of test & measurement equipment, with over 3000 products available for same-day shipping. For many instruments, new instrument calibration is also available, ensuring that your product is tested and ready for use as soon as you get it.
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  1. New
    Dwyer Instruments V4 Vane Operated Flow Switch,Brass Universal Vane,Vert.Up-flow
    Dwyer Instruments V4 Vane Operated Flow Switch,Brass Universal Vane,Vert.Up-flow
    Order #: V4-2-U-V
    Mfg #: V4-2-U-V
    Availability: In stock
    $510.00
    Vane Operated Flow Switch,Brass Universal Vane,Vert.Up-flow Learn More
  2. Accutron ACC-COMMTRAX-01 RS485 to TCP/IP converter Communication module
    Accutron ACC-COMMTRAX-01 RS485 to TCP/IP converter Communication module
    Order #: ACC-COMMTRAX-01
    Mfg #: ACC-COMMTRAX-01
    Availability: In stock
    Special Price $727.50 Regular Price $750.00
    RS485 to TCP/IP converter Communication module Learn More
  3. 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: In stock
    Special Price $511.76 Regular Price $682.35
    Digital Pressure Switch for Single-line Lubrication Systems Learn More
  4. Rosemount 2140 Level Detector - Vibrating Fork 1"NPT, EXP Class 1, Fork = 6"
    Rosemount 2140AHA1MS1NNNE00601E5M4 Level Detector - Vibrating Fork 1"NPT,EXP Class 1,Fork = 6",LO
    Order #: 2140AHA1MS1NNNE00601E5M4
    Mfg #: 2140AHA1MS1NNNE00601E5M4
    Availability: In stock
    $2,547.60
    Level Detector - Vibrating Fork 1"NPT,EXP Class 1,Fork = 6",LO Learn More
  5. new
    Rosemount 2140AHA1MS1NNNA00601E5EF3M4
    Rosemount 2140AHA1MS1NNNA00601E5EF3M4 Level Detector - Vibrating Fork 1"NPT,Fork=6",Diagnostic Suite
    Order #: 2140AHA1MS1NNNA00601E5EF3M4
    Mfg #: 2140AHA1MS1NNNA00601E5EF3M4
    Availability: In stock
    $1,256.20
    Level Detector - Vibrating Fork 1"NPT,Fork=6",Diagnostic Suite Learn More
  6. Rosemount 2140AHA1MS1NNNA00001E5M4
    Rosemount 2140AHA1MS1NNNA00001E5M4 Level Detector - Vibrating Fork 1"NPT,EXP Class 1,Fork=1.7",LO
    Order #: 2140AHA1MS1NNNA00001E5M4
    Mfg #: 2140AHA1MS1NNNA00001E5M4
    Availability: In stock
    $2,075.70
    Level Detector - Vibrating Fork 1"NPT,EXP Class 1,Fork=1.7",LO Learn More
  7. Flowline DL14-00
    Flowline DL14-00 EchoPod Ultrasonic Level Switch NPT,4/A Relays,24VDC
    Order #: DL14-00
    Mfg #: DL14-00
    Availability: Ships in 3-4 weeks
    $400.00
    EchoPod Ultrasonic Level Switch NPT,4/A Relays,24VDC Learn More
  8. Kobold Instruments LPS-1100P
    Kobold Instruments LPS-1100P Air Flow Switch
    Order #: LPS-1100P
    Mfg #: LPS-1100P
    Availability: In stock
    Special Price $145.96 Regular Price $171.72
    Air Flow Switch Learn More
  9. Meriam 1226
    Meriam 1226 Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS
    Order #: Z1226-2-A
    Mfg #: Z1226-2-A
    Availability: In stock
    Special Price $3,550.54 Regular Price $3,623.00
    Differential Pressure Switched Indicator,6"Dial,0-3PSID,316SS Learn More
  10. Newport Electronics SW143-8-M
    Omega Engineering SW143 3-Pole,1/4"DIN Selector Switch
    Order #: SW143-8-M
    Mfg #: SW143-8-M
    Availability: In stock
    Special Price $176.71 Regular Price $176.72
    3-Pole,1/4"DIN Selector Switch Learn More
  11. Dwyer TS-7 NTC Probe 1.5m cable
    Dwyer Instruments TS-7 NTC Probe 1.5m Cable
    Order #: TS-7
    Mfg #: TS-7
    Availability: In stock
    $5.77
    NTC Probe 1.5m Cable Learn More
  12. Dwyer TS-61 Metal Probe w/3m cable
    Dwyer Instruments TS-61 Metal Probe w/3m Cable
    Order #: TS-61
    Mfg #: TS-61
    Availability: In stock
    $13.83
    Metal Probe w/3m Cable Learn More
  13. Dwyer TS-6 Metal Probe w/5ft cable
    Dwyer Instruments TS-6 Metal Probe w/5ft Cable
    Order #: TS-6
    Mfg #: TS-6
    Availability: In stock
    $10.00
    Metal Probe w/5ft Cable Learn More
  14. Dwyer TS-51 PVC Probe with 3m cable
    Dwyer Instruments TS-51 PVC Probe with 3M Cable
    Order #: TS-51
    Mfg #: TS-51
    Availability: In stock
    $12.06
    PVC Probe with 3M Cable Learn More
  15. Dwyer TS-5 PVC Probe with 5' cable
    Dwyer Instruments TS-5 PVC Probe with 5' Cable
    Order #: TS-5
    Mfg #: TS-5
    Availability: In stock
    $8.59
    PVC Probe with 5' Cable Learn More
  16. Dwyer TS-21 PTC Probe SST Sheath
    Dwyer Instruments TS-21 PTC Probe SST Sheath 3m Cable
    Order #: TS-21
    Mfg #: TS-21
    Availability: In stock
    $17.06
    PTC Probe SST Sheath 3m Cable Learn More
  17. Dwyer TS-2 PTC Sensor Probe SS Sheath
    Dwyer Instruments TS-2 PTC Sensor Probe SS Sheath 1.5m Cable
    Order #: TS-2
    Mfg #: TS-2
    Availability: In stock
    $12.95
    PTC Sensor Probe SS Sheath 1.5m Cable Learn More
  18. Dwyer TS-11 PTC Sensor Probe Brass Sheath
    Dwyer Instruments TS-11 PTC Sensor Probe Brass Sheath 3m Cable
    Order #: TS-11
    Mfg #: TS-11
    Availability: In stock
    $11.77
    PTC Sensor Probe Brass Sheath 3m Cable Learn More
  19. 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
  20. 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
  21. 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
  22. 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
  23. Dwyer APS-150 Switch point range .8-28.5 inc, 1.6-30
    Dwyer Instruments APS-150 Swch pt rg .8-28.5 inc, 1.6-30 dec, +/-0.6 rep 0.8-1.3psi dbnd
    Order #: APS-150
    Mfg #: APS-150
    Availability: Ships in 3-4 weeks
    $162.36
    Swch pt rg .8-28.5 inc, 1.6-30 dec, +/-0.6 rep 0.8-1.3psi dbnd Learn More
  24. Dwyer AFS-252 Flow switch, gases, 1/2" NPT conduit
    Dwyer Instruments AFS-252 Flw swtch, gases, 1/2" NPT cond conn, brss pstn, brss hsng
    Order #: AFS-252
    Mfg #: AFS-252
    Availability: Ships in 3-4 weeks
    $1,367.06
    Flw swtch, gases, 1/2" NPT cond conn, brss pstn, brss hsng Learn More
  25. Dwyer AFS-251 Flow switch, gases, 18 AWG, 24"
    Dwyer Instruments AFS-251 Flw swtch, gases, 18 AWG, 24" polymeri, brss pstn brss hsng
    Order #: AFS-251
    Mfg #: AFS-251
    Availability: Ships in 3-4 weeks
    $1,314.12
    Flw swtch, gases, 18 AWG, 24" polymeri, brss pstn brss hsng Learn More
Showing 1-25 of 1174
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