
Dwyer Instruments PAFS-1004 Sensor
The Dwyer Instruments PAFS-1004 is a precision-engineered averaging flow sensor designed for heavy-duty HVAC and industrial air handling systems. This pitot tube air flow sensor features a 7 21/32" insertion length, making it ideal for accurate velocity measurements in smaller ductwork. Utilizing a multi-orifice design, the PAFS-1004 senses the total and static pressure to provide an average differential pressure signal, ensuring reliable duct airflow measurement even in non-uniform flow profiles. Constructed from durable 304 stainless steel, it is compatible with air and non-combustible gases. For seamless integration into existing pneumatic or electronic control loops, it utilizes a 1/4" I.D. and 3/8" OD tubing process connection. Field technicians value this series for its impact-resistant build and high-temperature tolerance, maintaining accuracy across a wide range of HVAC pressure sensing applications where traditional single-point sensors fail due to turbulence.
Key Benefits for the Contractor- Enhanced Accuracy: Multi-point sensing compensates for duct turbulence to provide a more stable differential pressure reading.
- Rugged Construction: 304 Stainless steel probe ensures longevity in demanding commercial and industrial environments.
- Simple Installation: Standard flange mounting and clear directional arrows allow for rapid field deployment.
- Universal Compatibility: Works with most differential pressure transmitters and manometers for air velocity monitoring.
How do I ensure the most accurate reading with the PAFS-1004?
Installation is critical; the sensor must be mounted with the sensing holes facing the airflow. For maximum stability, install the probe at least 8 to 10 duct diameters downstream from any elbows or transitions.
What is the maximum temperature rating for this averaging sensor?
The PAFS-1004 is designed for high-performance environments and can typically handle operating temperatures up to 400°F (204.4°C).
Can this be used with digital manometer systems?
Yes, the 1/4" I.D. tubing connection is standard for most HVAC airflow diagnostics tools and digital transmitters.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $20.10
-65%$20.10
$7.04Dwyer Instruments PAFS-1004 Sensor
The Dwyer Instruments PAFS-1004 is a precision-engineered averaging flow sensor designed for heavy-duty HVAC and industrial air handling systems. This pitot tube air flow sensor features a 7 21/32" insertion length, making it ideal for accurate velocity measurements in smaller ductwork. Utilizing a multi-orifice design, the PAFS-1004 senses the total and static pressure to provide an average differential pressure signal, ensuring reliable duct airflow measurement even in non-uniform flow profiles. Constructed from durable 304 stainless steel, it is compatible with air and non-combustible gases. For seamless integration into existing pneumatic or electronic control loops, it utilizes a 1/4" I.D. and 3/8" OD tubing process connection. Field technicians value this series for its impact-resistant build and high-temperature tolerance, maintaining accuracy across a wide range of HVAC pressure sensing applications where traditional single-point sensors fail due to turbulence.
Key Benefits for the Contractor- Enhanced Accuracy: Multi-point sensing compensates for duct turbulence to provide a more stable differential pressure reading.
- Rugged Construction: 304 Stainless steel probe ensures longevity in demanding commercial and industrial environments.
- Simple Installation: Standard flange mounting and clear directional arrows allow for rapid field deployment.
- Universal Compatibility: Works with most differential pressure transmitters and manometers for air velocity monitoring.
How do I ensure the most accurate reading with the PAFS-1004?
Installation is critical; the sensor must be mounted with the sensing holes facing the airflow. For maximum stability, install the probe at least 8 to 10 duct diameters downstream from any elbows or transitions.
What is the maximum temperature rating for this averaging sensor?
The PAFS-1004 is designed for high-performance environments and can typically handle operating temperatures up to 400°F (204.4°C).
Can this be used with digital manometer systems?
Yes, the 1/4" I.D. tubing connection is standard for most HVAC airflow diagnostics tools and digital transmitters.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Dwyer Instruments PAFS-1004 is a precision-engineered averaging flow sensor designed for heavy-duty HVAC and industrial air handling systems. This pitot tube air flow sensor features a 7 21/32" insertion length, making it ideal for accurate velocity measurements in smaller ductwork. Utilizing a multi-orifice design, the PAFS-1004 senses the total and static pressure to provide an average differential pressure signal, ensuring reliable duct airflow measurement even in non-uniform flow profiles. Constructed from durable 304 stainless steel, it is compatible with air and non-combustible gases. For seamless integration into existing pneumatic or electronic control loops, it utilizes a 1/4" I.D. and 3/8" OD tubing process connection. Field technicians value this series for its impact-resistant build and high-temperature tolerance, maintaining accuracy across a wide range of HVAC pressure sensing applications where traditional single-point sensors fail due to turbulence.
Key Benefits for the Contractor- Enhanced Accuracy: Multi-point sensing compensates for duct turbulence to provide a more stable differential pressure reading.
- Rugged Construction: 304 Stainless steel probe ensures longevity in demanding commercial and industrial environments.
- Simple Installation: Standard flange mounting and clear directional arrows allow for rapid field deployment.
- Universal Compatibility: Works with most differential pressure transmitters and manometers for air velocity monitoring.
How do I ensure the most accurate reading with the PAFS-1004?
Installation is critical; the sensor must be mounted with the sensing holes facing the airflow. For maximum stability, install the probe at least 8 to 10 duct diameters downstream from any elbows or transitions.
What is the maximum temperature rating for this averaging sensor?
The PAFS-1004 is designed for high-performance environments and can typically handle operating temperatures up to 400°F (204.4°C).
Can this be used with digital manometer systems?
Yes, the 1/4" I.D. tubing connection is standard for most HVAC airflow diagnostics tools and digital transmitters.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.











