Dwyer Instruments 475-2-FM Manometer
For veteran HVACR technicians and industrial contractors, the Dwyer Instruments 475-2-FM Manometer is the trade-standard for measuring differential pressure in demanding environments. This intrinsically safe digital manometer is FM approved for use in hazardous locations (Class 1, Div. 2, Groups A, B, C, D, T4), making it the go-to tool for monitoring natural gas pressure on boilers and combustion equipment. With a versatile range of 0 to 40.00" w.c. (9.96 kPa) and a 10 psig maximum pressure rating, it provides the precision needed for HVAC troubleshooting and field calibration. The handheld manometer features a rugged aluminum housing that stands up to jobsite abuse, and its dual-push pad interface allows for instant on/off, auto-zeroing, and unit selection without complex menus. Whether you are performing leak testing or measuring air velocity with a Pitot tube, this unit delivers consistent ±0.5% full-scale accuracy in a reliable, 9V battery-powered package.
Key Benefits- Intrinsically Safe Design: FM approved for hazardous environments, ensuring safety when working with combustible gases and industrial fuel lines.
- Exceptional Durability: Housed in a rugged, extruded aluminum case that protects the 4-digit LCD display and internal sensors from field impact.
- High-Precision Monitoring: Delivers 0.5% FS accuracy, critical for meeting tight specifications in commercial and industrial HVACR applications.
- Versatile Media Compatibility: Engineered for use with air and compatible combustible gases, including natural gas and propane systems.
- User-Friendly Interface: Simple two-button operation allows for rapid differential pressure readings and unit switching under time-sensitive conditions.
Can the Dwyer 475-2-FM be used for air velocity?
Yes. This digital manometer can be paired with a Dwyer Pitot tube and an AV calculator to accurately determine air velocity in ductwork.
Is this unit suitable for outdoor use in cold climates?
The 475-2-FM is rated for operating temperatures from 0 to 140°F. For the highest accuracy (±0.5%), keep the unit within the compensated temperature range of 32 to 104°F.
Which fittings are required for connection?
The unit features two barbed connections designed for use with 1/8" or 3/16" I.D. vinyl or rubber tubing, common in most HVAC troubleshooting kits.
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: $330.72
-65%$330.72
$115.75Dwyer Instruments 475-2-FM Manometer
For veteran HVACR technicians and industrial contractors, the Dwyer Instruments 475-2-FM Manometer is the trade-standard for measuring differential pressure in demanding environments. This intrinsically safe digital manometer is FM approved for use in hazardous locations (Class 1, Div. 2, Groups A, B, C, D, T4), making it the go-to tool for monitoring natural gas pressure on boilers and combustion equipment. With a versatile range of 0 to 40.00" w.c. (9.96 kPa) and a 10 psig maximum pressure rating, it provides the precision needed for HVAC troubleshooting and field calibration. The handheld manometer features a rugged aluminum housing that stands up to jobsite abuse, and its dual-push pad interface allows for instant on/off, auto-zeroing, and unit selection without complex menus. Whether you are performing leak testing or measuring air velocity with a Pitot tube, this unit delivers consistent ±0.5% full-scale accuracy in a reliable, 9V battery-powered package.
Key Benefits- Intrinsically Safe Design: FM approved for hazardous environments, ensuring safety when working with combustible gases and industrial fuel lines.
- Exceptional Durability: Housed in a rugged, extruded aluminum case that protects the 4-digit LCD display and internal sensors from field impact.
- High-Precision Monitoring: Delivers 0.5% FS accuracy, critical for meeting tight specifications in commercial and industrial HVACR applications.
- Versatile Media Compatibility: Engineered for use with air and compatible combustible gases, including natural gas and propane systems.
- User-Friendly Interface: Simple two-button operation allows for rapid differential pressure readings and unit switching under time-sensitive conditions.
Can the Dwyer 475-2-FM be used for air velocity?
Yes. This digital manometer can be paired with a Dwyer Pitot tube and an AV calculator to accurately determine air velocity in ductwork.
Is this unit suitable for outdoor use in cold climates?
The 475-2-FM is rated for operating temperatures from 0 to 140°F. For the highest accuracy (±0.5%), keep the unit within the compensated temperature range of 32 to 104°F.
Which fittings are required for connection?
The unit features two barbed connections designed for use with 1/8" or 3/16" I.D. vinyl or rubber tubing, common in most HVAC troubleshooting kits.
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
For veteran HVACR technicians and industrial contractors, the Dwyer Instruments 475-2-FM Manometer is the trade-standard for measuring differential pressure in demanding environments. This intrinsically safe digital manometer is FM approved for use in hazardous locations (Class 1, Div. 2, Groups A, B, C, D, T4), making it the go-to tool for monitoring natural gas pressure on boilers and combustion equipment. With a versatile range of 0 to 40.00" w.c. (9.96 kPa) and a 10 psig maximum pressure rating, it provides the precision needed for HVAC troubleshooting and field calibration. The handheld manometer features a rugged aluminum housing that stands up to jobsite abuse, and its dual-push pad interface allows for instant on/off, auto-zeroing, and unit selection without complex menus. Whether you are performing leak testing or measuring air velocity with a Pitot tube, this unit delivers consistent ±0.5% full-scale accuracy in a reliable, 9V battery-powered package.
Key Benefits- Intrinsically Safe Design: FM approved for hazardous environments, ensuring safety when working with combustible gases and industrial fuel lines.
- Exceptional Durability: Housed in a rugged, extruded aluminum case that protects the 4-digit LCD display and internal sensors from field impact.
- High-Precision Monitoring: Delivers 0.5% FS accuracy, critical for meeting tight specifications in commercial and industrial HVACR applications.
- Versatile Media Compatibility: Engineered for use with air and compatible combustible gases, including natural gas and propane systems.
- User-Friendly Interface: Simple two-button operation allows for rapid differential pressure readings and unit switching under time-sensitive conditions.
Can the Dwyer 475-2-FM be used for air velocity?
Yes. This digital manometer can be paired with a Dwyer Pitot tube and an AV calculator to accurately determine air velocity in ductwork.
Is this unit suitable for outdoor use in cold climates?
The 475-2-FM is rated for operating temperatures from 0 to 140°F. For the highest accuracy (±0.5%), keep the unit within the compensated temperature range of 32 to 104°F.
Which fittings are required for connection?
The unit features two barbed connections designed for use with 1/8" or 3/16" I.D. vinyl or rubber tubing, common in most HVAC troubleshooting kits.
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.
