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    34 Products

    Differential Pressure and Vacuum Gauges with Digital Display

    Gauges have a four-digit LCD display for easy reading of measurements. Commonly used to indicate clogged filters, these gauges display the difference between two pressure or vacuum measurements. They are also known as compound gauges.
    Aluminum Case with Brass Connection—(psi, kPa, in. of H₂O, in. of Hg, mbar)
    Image of Product. Front orientation. Differential Pressure and Vacuum Gauges. Differential Pressure and Vacuum Gauges with Digital Display .
    Pressure Range
    Vacuum Range,
    in. Hg
    Pressure Resolution,
    in. H₂O
    Max. Pressure
    For Tube ID
    Environment
    Temp. Range, ° F
    Process Temp.
    Range, ° F
    Digit
    Ht.
    Batteries
    Included
    Features
    For Use
    With
    Accuracy
    Each
    Barbed Fitting Connection
    0 psi to 0.723 psi
    0 psi to 10 psi
    0 kPa to 4.982 kPa
    0 in. H₂O to 20 in. H₂O
    0 mbar to 49.82 mbar    		0 to 1.4710.010.723 psi; 10 psi; 4.982 kPa; 20 in. H₂O; 49.82 mbar1/8" to 3/16"35 to 1000 to 1403/8"Yes40-Reading Memory, Overpressure AlarmAir±0.5% Full-Scale Accuracy (Not Rated)4125K410000000
    0 psi to 7.225 psi
    0 psi to 30 psi
    0 kPa to 49.82 kPa
    0 in. H₂O to 200 in. H₂O
    0 mbar to 498.2 mbar    		0 to 14.710.17.225 psi; 30 psi; 49.82 kPa; 200 in. H₂O; 498.2 mbar1/8" to 3/16"35 to 1000 to 1403/8"Yes40-Reading Memory, Overpressure AlarmAir±0.5% Full-Scale Accuracy (Not Rated)4125K43000000
    0 psi to 20 psi
    0 psi to 60 psi
    0 kPa to 137.9 kPa
    0 in. H₂O to 553 in. H₂O
    0 mbar to 1,379 mbar    		0 to 40.720.0120 psi; 60 psi; 137.9 kPa; 553 in. H₂O; 1,379 mbar1/8" to 3/16"35 to 1000 to 1403/8"Yes40-Reading Memory, Overpressure AlarmAir±0.5% Full-Scale Accuracy (Not Rated)4125K46000000
     
    Barbed Fitting Connection with Calibration Certificate Traceable to NIST
    0 psi to 0.723 psi
    0 psi to 10 psi
    0 kPa to 4.982 kPa
    0 in. H₂O to 20 in. H₂O
    0 mbar to 49.82 mbar    		0 to 1.4710.010.723 psi; 10 psi; 4.982 kPa; 20 in. H₂O; 49.82 mbar1/8" to 3/16"35 to 1000 to 1403/8"Yes40-Reading Memory, Overpressure AlarmAir±0.5% Full-Scale Accuracy (Not Rated)4125K61000000
    0 psi to 7.225 psi
    0 psi to 30 psi
    0 kPa to 49.82 kPa
    0 in. H₂O to 200 in. H₂O
    0 mbar to 498.2 mbar    		0 to 14.710.17.225 psi; 30 psi; 49.82 kPa; 200 in. H₂O; 498.2 mbar1/8" to 3/16"35 to 1000 to 1403/8"Yes40-Reading Memory, Overpressure AlarmAir±0.5% Full-Scale Accuracy (Not Rated)4125K63000000
    0 psi to 20 psi
    0 psi to 60 psi
    0 kPa to 137.9 kPa
    0 in. H₂O to 553 in. H₂O
    0 mbar to 1,379 mbar    		0 to 40.720.0120 psi; 60 psi; 137.9 kPa; 553 in. H₂O; 1,379 mbar1/8" to 3/16"35 to 1000 to 1403/8"Yes40-Reading Memory, Overpressure AlarmAir±0.5% Full-Scale Accuracy (Not Rated)4125K66000000
     

    Handheld High-Vacuum Gauges

    Check the vacuum levels in high-vacuum pumps, valves, and chambers with these compact gauges. Use a ring and clamp (both sold separately) to connect them to another quick-clamp high-vacuum fitting, also known as KF, QF, and NW fittings. The digital display shows measurements in torr, mbar (millibar) and hPa (hectopascal).
    ABS Case with 304 Stainless Steel Connection—(Torr, Millibars, Hectopascals)
    Image of Product. Front. Front orientation. Vacuum Gauges. Handheld High-Vacuum Gauges.
    Image of Product. Back. Back orientation. Vacuum Gauges. Handheld High-Vacuum Gauges.

    Front

    Back

    Gauges
    Clamps
    Rings
    Center-Back
    Connection
    High-Vacuum
    Flange Size
    Wd.
    Ht.
    Dp.
    Environment
    Temp. Range, ° F
    Process Temp.
    Range, ° F
    For Tube
    OD
    Flange
    OD
    No. of Batteries
    Included
    Case
    Color
    Vacuum Range
    For Use
    With
    Accuracy
    Each
    Each
    Each
    Quick Clamp Tube Connection
    162 3/8"4 3/4"1"40 to 1000 to 1403/4"1.18"1Red3.7 × 10^-4 Torr to 750 Torr
    5× 10^-4 mbar to 1,000 mbar
    5× 10^-4 hPa to 1,000 hPa    		Air±10% @ 1.5 × 10^-4 Torr to 7.5 Torr, ±30% @ 22.5 Torr to 75 Torr (Not Rated)3634N10000000004518K711000004518K62100000
     

    Barometers

    Image of Product. Front orientation. Barometers. Barometers, Dial Display.
    Image of Product. Front orientation. Barometers. Barometers, LCD Display.

    Dial Display

    LCD Display

    Measure atmospheric pressure changes in both inches of mercury (Hg) and millibars (mbar).
    Barometric
    Pressure
    Overall
    Range
    Accuracy
    Graduations
    Digit
    Ht.
    Dia.
    Dp.
    Ht.
    Wd.
    Dp.
    Mount Type
    Mounting
    Location
    Batteries
    Included
    Mounting Hole
    Dia. (No. of)
    Fasteners
    Included
    Certificate Type
    Each
    Dial Display
    28.1 in. Hg to 31.7 in. Hg
    715 mm Hg to 805 mm Hg
    954 mbar to 1,073 mbar    		±0.05 in. Hg
    ±0.05 mm Hg
    ±0.05 mbar    		0.05 in. Hg
    1 mm Hg
    0.5 mbar    		—4"1 1/4"———FreestandingWall—3/8" (1)NoCalibration Certificate Traceable to NIST4109K1010000000
     
    LCD Display with Audible Alarm and Trend Indicator
    20 in. Hg to 32 in. Hg
    509 mm Hg to 812 mm Hg
    677 mbar to 1,083 mbar    		±0.045 in. Hg
    ±1.14 mm Hg
    ±1.5 mbar    		—1 1/2"——2 7/8"9"1 1/2"FreestandingWallYes1" (1)No—4109K5000000
     

    Pressure and Vacuum Transmitters with Digital Display

    Monitor and control vacuum pumps, air compressors, and hydraulics while viewing readings and warnings on the display. These transmitters, also called transducers, have two outputs, so you can program them to work as a transmitter, a switch, or both. When they reach their setpoint, they send electrical signals to your programmable logic controller (PLC) to trigger actions in your system. Adjust their reset point anywhere within the setpoint range. To change settings and receive error messages remotely from your PLC or computer, program one of the outputs to use IO Link. You need an IO-Link controller (not included) to connect to your interface.
    Buttons on the display let you change your setpoint, measuring range, and other settings. To quickly tell the status of your process, you can program the color of the display to red and green. LEDs on the corners also notify you of your output’s switching status. Rotate the head to view the display from the best angle.
    You must calibrate your PLC in order for it to interpret signals from these transmitters. As pressure increases, the output signal from the transmitter will increase. These transmitters only give accurate readings within the rated pressure or vacuum range.
    All have an M12 plug to connect to M12 Connectors. When using both switching outputs and an IO-Link controller, they require four wires to connect. For their 4-20mA analog output, they need two wires to connect. View switch wiring diagrams by selecting a part number and clicking Product Detail.
    To withstand wet environments, these transmitters have a 316L stainless steel connection and are IP rated. Their IP ratings also mean they’re dust tight and stand up to spraying water and brief submersion. UL and C-UL listed as well as CE marked, they meet strict American, Canadian, and European safety standards.
    4 Pole M12 Plug In Connection
    Image of Product. Front orientation. Contains Annotated. Pressure and Vacuum Transmitters. Pressure and Vacuum Transmitters with Digital Display.
    Max.
    Pressure, psi
    Configurable Analog
    Transmitter/Digital Switch Output
    Configurable
    Digital Switch Output
    Pressure Range,
    psi
    Vacuum Range,
    in. Hg
    Continuous
    Short-Term
    Input Voltage,
    V DC
    Ht.
    Wd.
    No.
    Of
    Current,
    mA
    Signal
    Type
    No.
    Of
    Signal
    Type
    Measurement Unit
    For Use With
    Accuracy
    Temp. Range,
    ° F
    Connection Material
    Each
    Glass-Filled Polyester Plastic Housing
     
    1/4 NPT Female
    0 to 14.50 to 29.514514518 to 303 9/16"1 3/8"14 to 20NPN, PNP1NPN, PNPInches of Mercury, Inches of Water, Kilopascals, Millibars, Pounds per Square InchAir, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water±1%-10 to 175316L Stainless Steel4075N140000000
     
    1/4 NPT Male
    0 to 14.50 to 29.514514518 to 303 9/16"1 3/8"14 to 20NPN, PNP1NPN, PNPInches of Mercury, Inches of Water, Kilopascals, Millibars, Pounds per Square InchAir, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water±1%-10 to 175316L Stainless Steel4075N11000000
     
    1/4 BSPP Female
    0 to 7.30 to 14.814514518 to 303 9/16"1 3/8"14 to 20NPN, PNP1NPN, PNPInches of Water, Kilopascals, Millibars, Pounds per Square InchAir, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water±1%-10 to 175316L Stainless Steel4075N23000000
    0 to 14.50 to 1.414514518 to 303 9/16"1 3/8"14 to 20NPN, PNP1NPN, PNPInches of Water, Kilopascals, Millibars, Pounds per Square InchAir, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water±1%-10 to 175316L Stainless Steel4075N22000000
    0 to 14.50 to 29.514514518 to 303 9/16"1 3/8"14 to 20NPN, PNP1NPN, PNPInches of Mercury, Inches of Water, Kilopascals, Millibars, Pounds per Square InchAir, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water±1%-10 to 175316L Stainless Steel4075N21000000
     
    1/4 BSPP Male
    0 to 14.50 to 29.514514518 to 303 11/16"1 3/8"14 to 20NPN, PNP1NPN, PNPInches of Mercury, Inches of Water, Kilopascals, Millibars, Pounds per Square InchAir, Argon, Diesel Fuel, Hydraulic Fluid, Nitrogen, Water±1%-10 to 175316L Stainless Steel4075N29000000
     

    Pressure Transmitters with Digital Display

    Read pressure directly at the source and send data remotely with one device. Also known as transducers, these transmitters convert pressure to an electrical signal that can be interpreted by receiving devices, such as remote displays, programmable logic controllers, and motor speed controls to monitor pressure or control equipment. As pressure increases, the output signal from the transmitter will increase. For your receiving device to interpret the signal from the transmitter, you will need to calibrate it for the pressure range and output signal of the transmitter. Transmitters will only provide accurate readings within the rated pressure range.
    To change settings and receive error messages remotely from your PLC or computer, program one of the outputs to use IO Link. You need an IO-Link controller (not included) to connect to your interface.
    All have an M12 plug to connect to M12 sockets. When using the analog output current they require 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. These transmitters can also connect using three wires to send an analog output voltage—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. View switch wiring diagrams by selecting a part number and clicking Product Detail.
    All transmitters are rated IP67 for protection from temporary submersion. UL and C-UL listed as well as CE marked, they meet strict American, Canadian, and European safety standards.
    4-Pole M12 Plug Connection
    Image of Product. Front orientation. Contains Annotated. Pressure Transmitters. Pressure Transmitters with Digital Display.
    Pressure,
    psi
    Configurable Analog
    Transmitter/Digital Switch Output
    Configurable
    Digital Switch Output
    Range
    Set Point
    Range
    Max. Continuous
    Pressure, psi
    Max. Short-Term
    Pressure, psi
    Ht.
    Wd.
    No.
    of
    Current,
    mA
    Voltage,
    V DC
    Signal
    Output
    No.
    of
    Signal
    Output
    Enclosure
    Rating
    Certification
    For Use With
    Accuracy
    Housing Material
    Connection
    Material
    Temp. Range,
    ° F
    Each
    1/4 NPT Male Pipe Connection
     
    18V DC to 30V DC Input Voltage
    0 to 290 to 2929553 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T1810000000
    0 to 730 to 73731453 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T182000000
    0 to 1450 to 1451452903 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T183000000
    0 to 2900 to 2902905803 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T184000000
    0 to 7250 to 7257251,4503 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T185000000
    0 to 1,4500 to 1,4501,4502,9003 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T186000000
    0 to 3,6250 to 3,6253,6255,8003 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T187000000
    0 to 5,8000 to 5,8005,8009,4253 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T188000000
    0 to 8,7000 to 8,7008,70014,5003 3/4"1 11/32"14 to 200 to 10NPN
    PNP    		1NPN
    PNP    		IP67
    		UL Listed, C-UL Listed, CE Marked
    		Air
    Argon
    Hydraulic Fluid
    Nitrogen
    Water    		±0.5%304 Stainless Steel
    		304 Stainless Steel-40 to 1853160T189000000
     

    Absolute Pressure Gauges

    Image of Product. Front orientation. Pressure and Vacuum Gauges. Absolute Pressure Gauges.
    Image of Attribute. Bottom Connection. Front orientation. Bottom Connection. Absolute Pressure Gauges.

    Bottom

    Connection

    Unlike other gauges that measure the difference between your system and the atmosphere, these give measurements relative to zero pressure. They’re often used in laboratory applications, and they are barometrically independent.
    Stainless Steel Case—Stainless steel gauges have excellent corrosion resistance, so they can be used with more corrosive liquids and gasses than gauges with a brass connection and aluminum case.
    Torr—Gauges with a Torr scale are also known as Torr gauges.
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Environment
    Temp. Range, ° F
    Process Temp.
    Range, ° F
    Lens
    Material
    Pressure
    Graduations
    Pressure Numeric
    Increments
    For Use With
    Accuracy
    Each
    Anodized Aluminum Case with Brass Connection—Dual Scale (Millibars, Torr)
     
    NPT Male
    4"1/4
    		5 to 1200 to 145Glass0 mbar to 50 mbar; 0 Torr to 40 Torr1 mbar, 1 Torr10 mbar, 10 TorrAir±2% Full Scale (Grade Not Rated)1791T290000000
    4"1/4
    		5 to 1200 to 145Glass0 mbar to 130 mbar; 0 Torr to 100 Torr2 mbar, 2 Torr20 mbar, 20 TorrAir±2% Full Scale (Grade Not Rated)1791T28000000
    4"1/4
    		5 to 1200 to 145Glass0 mbar to 1,000 mbar; 0 Torr to 760 Torr10 Torr, 20 mbar100 Torr, 200 mbarAir±2% Full Scale (Grade Not Rated)1791T21000000
     
    Stainless Steel Case with Stainless Steel Connection—Single Scale (Millibars)
     
    BSPP Male
    4"1/2
    		5 to 1200 to 200Glass0 mbar to 25 mbar0.5 mbar5 mbarAir, Carbon Dioxide, Diesel Fuel, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Natural Gas, Water±1% Full Scale (Grade Not Rated)1791T7100000000
    4"1/2
    		5 to 1200 to 200Glass0 mbar to 60 mbar1 mbar10 mbarAir, Carbon Dioxide, Diesel Fuel, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Natural Gas, Water±1% Full Scale (Grade Not Rated)1791T7200000000
    4"1/2
    		5 to 1200 to 200Glass0 mbar to 160 mbar5 mbar50 mbarAir, Carbon Dioxide, Diesel Fuel, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Natural Gas, Water±1% Full Scale (Grade Not Rated)1791T7300000000
    4"1/2
    		5 to 1200 to 200Glass0 mbar to 600 mbar10 mbar100 mbarAir, Carbon Dioxide, Diesel Fuel, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Natural Gas, Water±1% Full Scale (Grade Not Rated)1791T7400000000
    4"1/2
    		5 to 1200 to 200Glass0 mbar to 1,000 mbar20 mbar200 mbarAir, Carbon Dioxide, Diesel Fuel, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Natural Gas, Water±1% Full Scale (Grade Not Rated)1791T7500000000
     
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