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  • Manometer
  • Products
    Calibration Services
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Pressure
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Air Quality
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Air Velocity
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Flow
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Level
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Temperature
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Test Equipment
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Valves
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Miscellaneous
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Hazardous Rated
    1. DEMO 1
    2. DEMO 2
    3. DEMO 3
    4. DEMO 4
    5. DEMO 5
    Portable
    Portable manometer test equipment indicates pressure. Applications include filter monitoring, laboratories, fan status, duct static pressure, and field calibration of other instruments. Dwyer's manometers are precision instruments in inclined and vertical styles. Most versatile and useful low cost manometers we know of.
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    Air Velocity
    Air Velocity instruments are portable manometers which indicate pressure and air velocity. Dwyer's air velocity models are accurate instruments designed for measurement of low differential pressures in laboratory and test applications. Ideal for measurement of low range gas and air pressures, positive, negative or differential.
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    • Most Popular
    • Questions
    • Videos

    Most Popular

    Series 1221/1222/1223
    Series 475
    Series 1211/1212
    Series 477AV

    Questions

    Question
    What is the advantage of using a manometer rather than a Magnehelic® gage?
    Answer
    Dwyer Instruments manufactures many different types and styles of manometers with various accuracies and prices for different applications as well as the Magnehelic® gage. For example, some of the many manometers we manufacture are Hook Gage Manometers with ±0.001 inches water column accuracy; Microtector® Portable Electronic Point Gage to ±0.00025 inches water column accuracy; Handheld Digital Manometers with ±0.5 inches water column accuracy; very inexpensive Mark II Molded Plastic Air Filter Gages at ±3% inches water column accuracy. The key point is that we offer many manometers and the selection depends on your specification, application, convenience needs and pocketbook. Some of the key factors to consider that affect manometer performance and usage are: Characteristics of Indicating Fluid, Readability and Leveling. You should read "Measurement of Pressure with the Manometer" in our catalog to fully understand the importance of these factors and their effect on your reading wit
    Related
    Series 250-AF
    Series 420
    Series 2000
    Series Mark II
    Series 1230/1235
    Question
    Why doesn't 1 inch on the scale of a 1223-12-D manometer equal 1 inch on a ruler?
    Answer
    The calibration scale on the manometer has been compensated for the specific gravity of red gage fluid which is less than water.
    Related
    Series 1221/1222/1223
    Question
    Since water will not mix with oil, why can't a D-style manometer be used to measure water pressures?
    Answer
    The weight of the water itself is also being measured which results in erroneous readings.
    Related
    Series 1221/1222/1223
    Question
    What are the principle advantages of red gage fluid over water for use in manometers?
    Answer
    Red gage fluid is slow to evaporate, won't freeze, is more readable and produces slightly expanded scales for better reading resolution.
    Related
    Series 420
    Series 100 AV
    Series 1227
    Series 100
    Series 1221/1222/1223
    Question
    Will the water manometers freeze?
    Answer
    Yes, if the temperature drops below 32 degrees Fahrenheit, the fluid in the manometer will freeze. The fluid used in "W/M" style manometers is water-based with a small amount of fluorescent green fluid to enhance the meniscus. The other gage fluids have a lower freezing point, however, it is recommended that the manometers be stored above 32 degrees Fahrenheit.
    Related
    Series 1227
    Series 1230/1235
    Series 1221/1222/1223

    Videos

    Series 477AV Handheld Digital Manometer
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