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Instrument Style:

Mounting:

Air Velocity?

Air Volumetric Flow?

Air Pressure Differential?

Technology Type:

Air Velocity Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Air Volume Flow Rate Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Air Pressure Range:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Accuracy:

±% Full Scale

Output Options:

Measures Temperature?

Time or Multi-point Averaging?

Temperature Compensation?

Audible or Visual Alarm?

Selectable Range?

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with Air Flow Sensors specifications:

Instrument Style
   Instrument Style       
   Your choices are...         
   Insertion Probe Type       Inserted into the air flow, these instruments measure the effectiveness of ventilation by measuring air velocity. 
   Flow Hood or Balometer       These instruments measure air volume flow at air supply or exhaust outlets. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Features
   Measures Temperature       The air flow sensors also measures temperature. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Time or Multi-point Averaging       Compensates for non-uniform air velocity across the duct cross-section. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Temperature Compensation       Automatic adjustment of readings to account for sensitivity variation due to temperature fluctuation. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Audible or Visual Alarm       Air flow sensor has audible or visual alarms to alert users to dangerous conditions. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Selectable Range       The air flow sensor is equipped with selectable measurement ranges. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Environment
   Operating Temperature       This is the ambient temperature range through which the device is designed to operate. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Mounting
   Mounting       
   Your choices are...         
   Hand-held or Portable       Portable and/or applicable by hand operation. 
   Fixtured or Permanent       Mounted or fixtured in place for long-running use. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Measurement Type
   Air Velocity       Air velocity may be measured directly or calculated from the velocity pressure (e.g., FPM, m/s, etc.). 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Air Volumetric Flow       Air volume flow is the product of the air velocity and the duct cross-sectional area (e.g., CFM, SCFM, etc.). 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Air Pressure Differential       The velocity pressure is the difference between the total pressure and the static pressure (e.g., PSI, etc.). 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Technology Type
   Technology Type       
   Your choices are...         
   Thermal Anemometer       A body is heated up to a fixed temperature and then exposed to the air velocity. By measuring how much more air is required to maintain the original temperature, indication of the air speed is gained. The higher the air speed, the more energy required to keep the temperature at a set level.  Based on the principle of wind chill factor. Hot wire, hot ball and thermistor probe types. 
   Differential Pressure       Pitot tubes, averaging tubes and other velocity pressure measurement devices. The velocity pressure is the difference between the total pressure and the static pressure. A Pitot tube has two pressure sampling points (static pressure and back pressure). Used with a differential pressure transmitter, the difference between these pressures is a measure of the velocity. 
   Vane Anemometer (Velometer)       A proximity switch counts the revolutions of the vane and supplies a pulse sequence, which is converted by the measuring instrument to a flow rate.  Based on the conversion of rotation into electrical signal. Rotating and swinging vane types. 
   Other Technology Type       Other unlisted, specialized, or proprietary technology type. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Air Velocity Flow Range
   Air Velocity Range       Air velocity may be measured directly or calculated from the velocity pressure (e.g., FPM, m/s, etc.). 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Air Volume Flow Range
   Air Volume Flow Rate Range       Air volume flow is the product of the air velocity and the duct cross-sectional area (e.g., CFM, SCFM, etc.). 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Air Pressure Range
   Air Pressure Range       The velocity pressure is the difference between the total pressure and the static pressure (e.g., PSI, etc.). 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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Accuracy
   Accuracy       Accuracy is the degree of uncertainly which the measured value agrees with the ideal value. Accuracy is measured in a percentage of the full scale range of the instrument. 
   Search Logic:      All matching products will have a value less than or equal to the specified value.
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Output Options
   Output Options       
   Your choices are...         
   Analog Voltage       Outputs an analog voltage signal 
   Analog Current       "Transmitter" Option; (e.g., 4-20 mA) 
   Frequency or Modulated Frequency Output       Frequency or modulated frequency output (Ex. sine wave, pulse train, AM, FM). 
   Switch or Alarm Signal       "Output" is a switch or alarm signal. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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