McMaster-Carr logo
    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)
    6 Products
    About Pressure Gauges
    industrial info icon

    Find a gauge with the right connection material and dial type—many with traceable calibration certificates.

    High-Accuracy Low-Pressure Gauges

    Measure small pressure changes in ventilation systems, hydraulic applications, and other critical processes with these high-accuracy gauges. Mount them with the dial face upright.
    Painted Steel Case with Brass Connection—Single Scale (Ounces per Square Inch)
    Image of Product. Front orientation. Pressure Gauges. High-Accuracy Low-Pressure Gauges, Single Scale, Bottom Connection.
    Image of Product. Front orientation. Pressure Gauges. High-Accuracy Low-Pressure Gauges, Single Scale, Center-Back Connection.
    Image of Attribute. Bottom Connection. Front orientation. High-Accuracy Low-Pressure Gauges, Bottom Connection.
    Image of Attribute. Center-Back Connection. Front orientation. High-Accuracy Low-Pressure Gauges, Center-Back Connection.

    Bottom Connection

    Center-Back

    Connection

    Bottom

    Connection

    Center-Back

    Connection

    Temp.
    Range, ° F
    Bottom
    Connection
    Center-Back
    Connection
    Dial
    Dia.
    Pipe
    Size
    Case
    Color
    Environment
    Process
    For Use With
    Accuracy
    Choose a Pressure Range
    Each
    Each
    Upright Mount
     
    NPT Male
    2 1/2"1/4
    		Black0 to 1400 to 140Air
    Carbon Dioxide
    Hydraulic Fluid
    Natural Gas
    Water    		±1.5% Full Scale (Not Rated)0 to 10 oz. per in², 0 to 15 oz. per in², 0 to 30 oz. per in², 0 to 60 oz. per in², 0 to 100 oz. per in², 0 to 160 oz. per in²4026K230000004026K45000000
     
    NPT Male with Calibration Certificate Traceable to NIST
    2 1/2"1/4
    		Black0 to 1400 to 140Air
    Carbon Dioxide
    Hydraulic Fluid
    Natural Gas
    Water    		±1.5% Full Scale (Not Rated)0 to 10 oz. per in², 0 to 15 oz. per in², 0 to 30 oz. per in², 0 to 60 oz. per in², 0 to 100 oz. per in², 0 to 160 oz. per in²4026K360000004026K55000000
     
    304 Stainless Steel Case with Brass Connection—Single Scale (Ounces per Square Inch)
    Image of Product. Front orientation. Pressure Gauges. High-Accuracy Low-Pressure Gauges, Single Scale, Bottom Connection.
    Image of Attribute. Bottom Connection. Front orientation. High-Accuracy Low-Pressure Gauges, Bottom Connection.

    Bottom Connection

    Bottom

    Connection

    Gauges with 304 stainless steel case or polyester plastic case have better corrosion resistance than gauges with painted steel case.
    Temp.
    Range, ° F
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Environment
    Process
    For Use With
    Accuracy
    Choose a Pressure Range
    Each
    Upright Mount
     
    NPT Male
    4"1/4
    		0 to 1400 to 140Air
    Carbon Dioxide
    Hydraulic Fluid
    Natural Gas
    Water    		±1% Full Scale (Grade 1A)0 to 10 oz. per in², 0 to 15 oz. per in², 0 to 30 oz. per in², 0 to 60 oz. per in²4269K30000000
     
    Polyester Plastic Case with Brass Connection—Dual Scale (Inches of Water, Ounces per Square Inch)
    Image of Product. Front orientation. Pressure Gauges. High-Accuracy Low-Pressure Gauges, Dual Scale, Bottom Connection (Flange Mount).
    Image of Attribute. Bottom Connection (Flange Mount). Front orientation. High-Accuracy Low-Pressure Gauges, Bottom Connection (Flange Mount).

    Bottom Connection

    (Flange Mount)

    Bottom Connection (Flange

    Mount)

    Gauges with 304 stainless steel case or polyester plastic case have better corrosion resistance than gauges with painted steel case.
    Safety Case—Gauges with safety case blow out in the back under excess pressure, protecting the operator in front.
    Bottom Connection (Flange Mount)
    Temp.
    Range, ° F
    Mounting
    Dial
    Dia.
    Pipe
    Size
    Case
    Color
    Environment
    Process
    Features
    For Use With
    Accuracy
    Choose a Pressure Range
    Fasteners
    Included
    Hole
    Dia.
    No. of
    Holes
    Each
    Upright Mount
     
    NPT Male
    4 1/2"1/4
    		Black0 to 140-40 to 210Safety CaseAir
    Argon
    Natural Gas
    Nitrogen    		±1% Midscale (Grade A)0 to 10 in. H₂O/0 to 6 oz. per in², 0 to 15 in. H₂O/0 to 9 oz. per in², 0 to 20 in. H₂O/0 to 12 oz. per in², 0 to 30 in. H₂O/0 to 18 oz. per in², 0 to 40 in. H₂O/0 to 24 oz. per in², 0 to 60 in. H₂O/0 to 35 oz. per in², 0 to 80 in. H₂O/0 to 45 oz. per in², 0 to 100 in. H₂O/0 to 57 oz. per in², 0 to 150 in. H₂O/0 to 90 oz. per in²No1/4"34221K20000000
     
    back to top