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Temperature & Pressure Gauges

Temperature & Pressure Gauges

  • 2" PET Economy Gas Test Pressure Gauge (0-15 PSI) Product Image
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    2" PET Economy Gas Test Pressure Gauge (0-15 PSI) GEG2-15 2" PET Economy Gas Test Pressure Gauge (0-15 PSI)
    SKU: GEG2-15
    Brand: Bluefin
    $6.29 each
    479
    Tue, Apr 14
    479
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    479 Tue, Apr 14
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  • 2" PEM Dual Scale Economy Pressure Gauge (0-60 PSI) Product Image
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    2" PEM Dual Scale Economy Pressure Gauge (0-60 PSI) GEP2-60-DS 2" PEM Dual Scale Economy Pressure Gauge (0-60 PSI)
    SKU: GEP2-60-DS
    Brand: Bluefin
    $3.45 each
    1,022
    Tue, Apr 14
    1,022
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    1,022 Tue, Apr 14
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  • 2-1/2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI) Product Image
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    2-1/2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI) GEP25-100-DS 2-1/2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI)
    SKU: GEP25-100-DS
    Brand: Bluefin
    $3.95 each
    682
    Tue, Apr 14
    682
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    682 Tue, Apr 14
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  • 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-300 PSI) Product Image
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    2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-300 PSI) GSS25-300-DS 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-300 PSI)
    SKU: GSS25-300-DS
    Brand: Bluefin
    $7.59 each
    397
    Tue, Apr 14
    397
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    397 Tue, Apr 14
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  • 2" PET Economy Gas Test Pressure Gauge (0-30 PSI) Product Image
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    2" PET Economy Gas Test Pressure Gauge (0-30 PSI) GEG2-30 2" PET Economy Gas Test Pressure Gauge (0-30 PSI)
    SKU: GEG2-30
    Brand: Bluefin
    $6.29 each
    626
    Tue, Apr 14
    626
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    626 Tue, Apr 14
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  • 4.5" PCT Contractor Pressure Gauge (0-15 PSI) Product Image
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    4.5" PCT Contractor Pressure Gauge (0-15 PSI) GCP45-15 4.5" PCT Contractor Pressure Gauge (0-15 PSI)
    SKU: GCP45-15
    Brand: Bluefin
    (1)
    $11.39 each
    150
    Tue, Apr 14
    150
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    150 Tue, Apr 14
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  • 1/2" NPT, 2.5" Face, Snap Well Thermometer <br>(Stainless Steel) Product Image
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    1/2" NPT, 2.5" Face, Snap Well Thermometer (Stainless Steel) TH25-250-50SST 1/2" NPT, 2.5" Face, Snap Well Thermometer (Stainless Steel)
    SKU: TH25-250-50SST
    Brand: Bluefin
    $4.35 each
      Box Up & Save 16%  
    $18.25 box of 5
    $3.65 each
    652
    Tue, Apr 14
    652
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    652 Tue, Apr 14
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  • 2" PEM Dual Scale Economy Pressure Gauge (0-30 PSI) Product Image
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    2" PEM Dual Scale Economy Pressure Gauge (0-30 PSI) GEP2-30-DS 2" PEM Dual Scale Economy Pressure Gauge (0-30 PSI)
    SKU: GEP2-30-DS
    Brand: Bluefin
    $3.45 each
    422
    Tue, Apr 14
    422
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    422 Tue, Apr 14
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  • 3-1/2" Industrial Therm. w/ Valox Case (30°F to 240°F & 0°C to 115°C) Product Image
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    3-1/2" Industrial Therm. w/ Valox Case (30°F to 240°F & 0°C to 115°C) TH35-240-V 3-1/2" Industrial Therm. w/ Valox Case (30°F to 240°F & 0°C to 115°C)
    SKU: TH35-240-V
    Brand: Bluefin
    $38.49 each
    167
    Tue, Apr 14
    167
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    167 Tue, Apr 14
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  • Water Test Gauge<br>3/4" Hose Thread Product Image
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    Water Test Gauge 3/4" Hose Thread GW25-200 Water Test Gauge 3/4" Hose Thread
    SKU: GW25-200
    Brand: Bluefin
    (2)
    $4.65 each
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    $19.75 box of 5
    $3.95 each
    2,402
    Tue, Apr 14
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    2,402 Tue, Apr 14
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  • 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-100 PSI) Product Image
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    2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-100 PSI) GSS25-100-DS 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-100 PSI)
    SKU: GSS25-100-DS
    Brand: Bluefin
    (2)
    $7.59 each
    451
    Tue, Apr 14
    451
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    451 Tue, Apr 14
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  • 3" TTD Bottom Mount Dual Scale Tridicator (0-75 PSI and 70°F-320°F) Product Image
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    3" TTD Bottom Mount Dual Scale Tridicator (0-75 PSI and 70°F-320°F) TDA3-BM 3" TTD Bottom Mount Dual Scale Tridicator (0-75 PSI and 70°F-320°F)
    SKU: TDA3-BM
    Brand: Bluefin
    $20.69 each
    146
    Tue, Apr 14
    146
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    146 Tue, Apr 14
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  • Water Test Gauge <br> 3/4" Hose Thread (0 - 300 PSI) Product Image
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    Water Test Gauge 3/4" Hose Thread (0 - 300 PSI) GW25-300 Water Test Gauge 3/4" Hose Thread (0 - 300 PSI)
    SKU: GW25-300
    Brand: Bluefin
    (1)
    $4.65 each
      Box Up & Save 15%  
    $19.75 box of 5
    $3.95 each
    408
    Tue, Apr 14
    408
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    408 Tue, Apr 14
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  • 2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI) Product Image
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    2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI) GEP2-100-DS 2" PEM Dual Scale Economy Pressure Gauge (0-100 PSI)
    SKU: GEP2-100-DS
    Brand: Bluefin
    $3.45 each
    551
    Tue, Apr 14
    551
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    551 Tue, Apr 14
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  • 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-160 PSI) Product Image
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    2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-160 PSI) GSS25-160-DS 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-160 PSI)
    SKU: GSS25-160-DS
    Brand: Bluefin
    $7.59 each
    434
    Tue, Apr 14
    434
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    434 Tue, Apr 14
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  • 2" PET Economy Gas Test Pressure Gauge (0-100 PSI) Product Image
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    2" PET Economy Gas Test Pressure Gauge (0-100 PSI) GEG2-100 2" PET Economy Gas Test Pressure Gauge (0-100 PSI)
    SKU: GEG2-100
    Brand: Bluefin
    $6.29 each
    293
    Tue, Apr 14
    293
    QtyArrives
    293 Tue, Apr 14
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  • 4.5" Contractor Pressure Gauge (0-100 PSI) Product Image
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    4.5" Contractor Pressure Gauge (0-100 PSI) GCP45-100 4.5" Contractor Pressure Gauge (0-100 PSI)
    SKU: GCP45-100
    Brand: Bluefin
    (1)
    $11.39 each
    189
    Tue, Apr 14
    189
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    189 Tue, Apr 14
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  • 1/2" Sweat Connection Thermometers<br>w/ 2-1/2" Dial Size Product Image
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    1/2" Sweat Connection Thermometers w/ 2-1/2" Dial Size TH25-250-50C 1/2" Sweat Connection Thermometers w/ 2-1/2" Dial Size
    SKU: TH25-250-50C
    Brand: Bluefin
    $4.39 each
      Box Up & Save 16%  
    $36.80 box of 10
    $3.68 each
    424
    Tue, Apr 14
    424
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    424 Tue, Apr 14
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  • 1/4" NPT, 2.5" Face, Temp & Press. Gauge (Tridicator), 3-3/8" Well Product Image
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    1/4" NPT, 2.5" Face, Temp & Press. Gauge (Tridicator), 3-3/8" Well TD25B-BKX 1/4" NPT, 2.5" Face, Temp & Press. Gauge (Tridicator), 3-3/8" Well
    SKU: TD25B-BKX
    Brand: Bluefin
    $12.79 each
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    $53.45 box of 5
    $10.69 each
    1,185
    Tue, Apr 14
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    1,185 Tue, Apr 14
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  • 1/4" NPT, 2" Dial, Lower Mount No Lead Pressure Gauge (0-100 PSI) Product Image
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    1/4" NPT, 2" Dial, Lower Mount No Lead Pressure Gauge (0-100 PSI) GEP2-100-BM 1/4" NPT, 2" Dial, Lower Mount No Lead Pressure Gauge (0-100 PSI)
    SKU: GEP2-100-BM
    Brand: Bluefin
    (5)
    $3.45 each
      Box Up & Save 17%  
    $28.50 box of 10
    $2.85 each
    5,096
    Tue, Apr 14
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    5,096 Tue, Apr 14
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  • 1/4" NPT, 2.5" Face, Temp & Press. Gauge (Tridicator) Product Image
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    1/4" NPT, 2.5" Face, Temp & Press. Gauge (Tridicator) TD25B-BK 1/4" NPT, 2.5" Face, Temp & Press. Gauge (Tridicator)
    SKU: TD25B-BK
    Brand: Bluefin
    (3)
    $10.59 each
      Box Up & Save 17%  
    $43.95 box of 5
    $8.79 each
    1,781
    Tue, Apr 14
    1,781
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    1,781 Tue, Apr 14
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  • 2" Dial Pressure Gauge - Center Back Mounted<br>(0-100 PSI Range) Product Image
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    2" Dial Pressure Gauge - Center Back Mounted (0-100 PSI Range) GEP2-100-BK 2" Dial Pressure Gauge - Center Back Mounted (0-100 PSI Range)
    SKU: GEP2-100-BK
    Brand: Bluefin
    (1)
    $3.65 each
    478
    Tue, Apr 14
    478
    QtyArrives
    478 Tue, Apr 14
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  • 2" PEM Dual Scale Economy Pressure Gauge (0-15 PSI) Product Image
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    2" PEM Dual Scale Economy Pressure Gauge (0-15 PSI) GEP2-15-DS 2" PEM Dual Scale Economy Pressure Gauge (0-15 PSI)
    SKU: GEP2-15-DS
    Brand: Bluefin
    $3.45 each
    513
    Tue, Apr 14
    513
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    513 Tue, Apr 14
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  • 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-60 PSI) Product Image
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    2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-60 PSI) GSS25-60-DS 2-1/2" SS Liquid Filled Gauge, 1/4" NPT w/ Brass Internals (0-60 PSI)
    SKU: GSS25-60-DS
    Brand: Bluefin
    $7.59 each
    296
    Tue, Apr 14
    296
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    296 Tue, Apr 14
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FAQs, Manuals & Videos

Resources

Articles

  • Temperature and pressure gauges are used to measure the temperature and pressure of a gas or liquid in a system. Stainless steel is the most common material used for these gauges, followed by brass. Gauges are available in either dry or liquid filled models. A liquid filled gauge has a long lifespan because it has fewer moving parts and the thick oil which fills it leaves no room for humid ambient air to enter. Water cannot condense and accumulate in a liquid filled gauge, as it can in a dry gauge.

    Some gauges contain illuminated dials and digital readouts for better visibility. A gauge with temperature compensation has the ability to correct any ambient temperature variation. Differential gauges allow for differential pressures, and duplex gauges indicate dual pressures on a single dial. Tridicators are common pressure gauges that measure temperature, pressure, and altitude. Snap Well thermometers measure the ambient temperature of a desired location.

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