McMaster-Carr logo
    Filter by
    Output Signal Type
    For Use With
    System of Measurement
    Pipe Size
    Industrial Info Snippet
    Fitting Connection
    Industrial Info Compare
    Maximum Continuous Pressure
    Display Type
    Input Voltage
    Industrial Info Snippet
    Maximum Pressure
    Thread Type
    Number of Wires
    Connects To
    Switching Voltage
    Industrial Info Snippet
    Electrical Connection
    Gender
    Tube OD
    Attribute Image
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    Help me decide (beta)
    13 Products
    About Pressure Transmitters
    industrial info icon

    Match a pressure transmitter to your receiver by choosing the right signal output: current or voltage.

    Pressure Transmitters for Compressed Air

    Image of Product. Front orientation. Pressure Transmitters. Pressure Transmitters for Compressed Air.
    With a pressure range common to most compressed air systems, use these transmitters to monitor your system's air pressure. Also known as transducers, these transmitters convert pressure to an electrical signal that can be interpreted by receiving devices such as remote displays and motor speed controls. They can also connect to a programmable logic controller (PLC) with two digital PNP switch outputs, so you can activate automated controls or alarms when a set pressure is reached. They have a digital display with buttons to change settings.
    For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's pressure range and output signal. As pressure increases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated pressure range.
    UL and C-UL recognized components, CSA certified, and CE marked, they meet American, Canadian, and European safety standards.
    Transmitters with Wire Lead Connection
    2.4 mA to 20 mA Output Signal—Transmitters with output current connect using two wires. The same wire is used to send a signal to the receiver and to power the transmitter. Current doesn’t lose signal over long distances and isn’t affected by electrical interference from other devices.
    0.6V DC to 5V DC Output Signal—Transmitters with output voltage connect using three wires—two wires into the power supply and a separate wire that sends a signal to the receiver. The receiver and the transmitter share a common ground wire back to the power supply.
    Analog
    Transmitter Output
    Digital
    Switch Output
    Pressure,
    psi
    Analog Signal
    No.
    of
    Digital
    Signal
    No.
    of
    Range
    Set Point
    Range
    Max. Continuous
    Pressure, psi
    Max. Short-Term
    Pressure, psi
    Input Voltage,
    V DC
    Ht.
    Wd.
    Enclosure
    Rating
    Certification
    For Use With
    Accuracy
    Housing
    Material
    Connection
    Material
    Temp. Range,
    ° F
    Each
     
    1/8 NPT Male Pipe Connection
    2.4 mA to 20 mA1PNP214.5 to 14514.5 to 14514521812 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CE Marked, CSA Certified
    		Air
    Argon
    Nitrogen    		±0.2%PolybutyleneNickel-Plated Brass25 to 1204276N13000000
    0.6V DC to 5V DC1PNP214.5 to 14514.5 to 14514521812 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CE Marked, CSA Certified
    		Air
    Argon
    Nitrogen    		±0.2%PolybutyleneNickel-Plated Brass25 to 1204276N1100000
     
    1/4" OD Push-to-Connect Tube Connection
    2.4 mA to 20 mA1PNP214.5 to 14514.5 to 14514521812 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CE Marked, CSA Certified
    		Air
    Argon
    Nitrogen    		±0.2%PolybutyleneNickel-Plated Brass25 to 1204276N1400000
    0.6V DC to 5V DC1PNP214.5 to 14514.5 to 14514521812 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CE Marked, CSA Certified
    		Air
    Argon
    Nitrogen    		±0.2%PolybutyleneNickel-Plated Brass25 to 1204276N1200000
     
    Square Panel-Mount Brackets
    Image of Product. Front orientation. Brackets.
    Add a panel-mounting bracket to mount these switches to a control panel for easy viewing and adjusting.
    For Panel
    Cutout
    Ht.
    Wd.
    Mounting
    Hole Style
    Each
    1 7/32"1 7/32"Straight3167K2200000

    Pressure and Vacuum Transmitters for Compressed Air

    Image of Product. Front orientation. Pressure and Vacuum Transmitters. Pressure and Vacuum Transmitters for Compressed Air.
    Specifically made for compressed air and gas systems, these transmitters remotely monitor pressure and vacuum. Also known as transducers, they convert both pressure and vacuum into an electrical signal that can be interpreted by receiving devices, such as remote displays, and motor speed controls. They also have two digital PNP switch outputs that you can connect to your programmable logic controller (PLC) to activate automated controls or alarms when a set pressure or vacuum is reached. Change settings with the buttons on the digital display.
    For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's pressure or vacuum range and output signal. As pressure increases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated pressure or vacuum range.
    UL and C-UL recognized components, CSA certified, and CE marked, they meet American, Canadian, and European safety standards.
    For the Manufacturer User Manual, click on a part number and select Product Detail.
    Wire Leads
    4 mA to 20 mA Output Signal—Transmitters with 4 to 20 mA output signal connect using two wires. The same wire is used to send a signal to the receiver and to power the transmitter. Signal is not lost over long distances and isn’t affected by electrical interference from other devices.
    1V DC to 5V DC Output Signal—Transmitters with 1 to 5V DC output signal connect using three wires. Two wires connect to the power supply, and a separate wire sends a signal to the receiver. The receiver and the transmitter share a common ground wire back to the power supply.
    Analog
    Transmitter Output
    Digital
    Switch Output
    Max.
    Pressure, psi
    Setpoint
    Range
    Analog Signal
    No.
    Of
    Digital
    Signal
    No.
    of
    Pressure Range,
    psi
    Vacuum Range,
    in. Hg
    Continuous
    Short-Term
    Pressure,
    psi
    Vacuum,
    in. Hg
    Input Voltage,
    V DC
    Ht.
    Wd.
    Enclosure
    Rating
    For Use With
    Accuracy
    Connection
    Material
    Temp. Range,
    ° F
    Each
    Polybutylene Housing
     
    1/8 Male NPT Pipe Threaded Fitting Connection
    4 mA to 20 mA1PNP20 to 14.50 to 2914.5720 to 14 1/20 to 2912 to 241 13/16"1 13/16"IP40
    		Air, Argon, Nitrogen±2%Nickel-Plated Brass25 to 1204263N13000000
    1V DC to 5V DC1PNP20 to 14.50 to 2914.5720 to 14 1/20 to 2912 to 241 13/16"1 13/16"IP40
    		Air, Argon, Nitrogen±2%Nickel-Plated Brass25 to 1204263N1100000
     
    1/4" OD Tube Push-to-Connect Fitting Connection
    4 mA to 20 mA1PNP20 to 14.50 to 2914.5720 to 14 1/20 to 2912 to 241 13/16"1 13/16"IP40
    		Air, Argon, Nitrogen±2%Nickel-Plated Brass25 to 1204263N1400000
    1V DC to 5V DC1PNP20 to 14.50 to 2914.5720 to 14 1/20 to 2912 to 241 13/16"1 13/16"IP40
    		Air, Argon, Nitrogen±2%Nickel-Plated Brass25 to 1204263N1200000
     
    Square Panel-Mount Brackets
    Image of Product. Front orientation. Brackets. Pressure and Vacuum Transmitters for Compressed Air.
    Add a panel-mounting bracket to mount these switches to a control panel for easy viewing and adjusting.
    Mounting
    Hole Style
    Each
    Straight3167K2200000

    Compressed Air Vacuum Transmitters

    Image of Product. Front orientation. Vacuum Transmitters. Compressed Air Vacuum Transmitters .
    Designed for compressed air and gas systems, these transmitters remotely monitor vacuum. Also known as transducers, they convert vacuum to an electrical signal that can be interpreted by receiving devices, such as remote displays, and motor speed controls. They also have two digital PNP switch outputs that you can connect to your programmable logic controller (PLC) to activate automated controls or alarms when a set vacuum is reached. Change settings and view readings on the digital display.
    For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the transmitter's vacuum range and output signal. As vacuum decreases, the output signal from the transmitter will increase. Transmitters will only provide accurate readings within the rated vacuum range.
    For the Manufacturer User Manual, click on a part number and select Product Detail.
    1V DC to 5V DC Output Signal—Transmitters with 1 to 5V DC output signal connect using three wires. Two wires connect to the power supply, and a separate wire sends a signal to the receiver. The receiver and the transmitter share a common ground wire back to the power supply.
    4 mA to 20 mA Output Signal—Transmitters with 4 to 20 mA output signal connect using two wires. The same wire is used to send a signal to the receiver and to power the transmitter. Signal is not lost over long distances and isn’t affected by electrical interference from other devices.
    Certification—UL and C-UL recognized components, CSA certified, and CE marked, they meet American, Canadian, and European safety standards.
    Analog
    Transmitter Output
    Digital
    Switch Output
    Analog Signal
    No.
    of
    Digital
    Signal
    No.
    of
    Vacuum Range,
    in. Hg
    Max. Continuous
    Pressure, psi
    Max. Short-Term
    Pressure, psi
    Pressure Set
    Point, in. Hg
    Input Voltage,
    V DC
    Ht.
    Wd.
    Enclosure
    Rating
    Certification
    Each
    Wire Lead Connection
     
    1/8 NPT Male Threaded Pipe Connection
    1V DC to 5V DC1PNP20 to 3015720 to 3012 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CSA Certified, CE Marked
    		3859N11000000
    4 mA to 20 mA1PNP20 to 3015720 to 3012 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CSA Certified, CE Marked
    		3859N1300000
     
    1/4" OD Push-to-Connect Tube Connection
    1V DC to 5V DC1PNP20 to 3015720 to 3012 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CSA Certified, CE Marked
    		3859N1200000
    4 mA to 20 mA1PNP20 to 3015720 to 3012 to 241 3/16"1 3/16"IP40
    		UL Recognized Component, C-UL Recognized Component, CSA Certified, CE Marked
    		3859N1400000
     
    Square Panel-Mount Brackets
    Image of Product. Front orientation. Brackets.
    Add a panel-mounting bracket to mount these switches to a control panel for easy viewing and adjusting.
    Mounting
    Hole Style
    Each
    Straight3167K2200000
    back to top