DWYER SERIES 477A DIGITAL MANOMETER

The Dwyer Series 477A handheld digital manometer is a versatile instrument used to measure positive, negative, or differential pressure in air and compatible gases. It is widely used in applications such as HVAC systems and lab settings.

The Dwyer 477A offers a range of features for professional use:

• Versatile Measurement: Measures positive, negative, or differential pressures, and some models (477AV series) also measure air velocity and flow.
• Multiple Units: Provides instant selection from up to nine English/metric pressure units (e.g., psi, in w.c., kPa, mbar).
  Data Logging: Includes a memory function to store up to 40 readings for later review and analysis, a feature particularly useful for duct traverses in HVAC.
• User-Friendly Display: Features a large, 4-digit LCD display with a backlight for use in poorly lit areas.
• Safety and Reliability: Includes both audible and visual alarms to warn of overpressure conditions, ensuring the safety of the device and operation.
• Adjustable Damping: A damping feature is available to average fluctuating readings, providing a more stable and readable measurement.
• Portability: The unit is battery-operated (9V alkaline battery) and lightweight, housed in a rugged extruded aluminum case with a one-piece front membrane to protect against dust and moisture.