Description
Dwyer 1920-0 Low Differential Pressure Switch Overview
The Dwyer 1920-0 is a precision low differential pressure switch engineered for reliable performance in HVAC, building automation, and industrial airflow monitoring applications. Designed to detect small pressure differentials in air and non-combustible gas systems, this switch provides dependable switching action to protect equipment and maintain system efficiency.
Key Features
- Set point range: .15″ w.c. to .55″ w.c. — ideal for low differential pressure detection
- SPDT (Single-Pole, Double-Throw) switch for versatile circuit control
- Compatible with air and non-combustible gases
- 45″ w.c. continuous pressure limit for robust system protection
- Includes conduit connection for secure, code-compliant wiring
- High-pressure (HP) back port for convenient system integration
Applications
- Air handler and AHU filter status monitoring
- Fan proof-of-flow verification
- Duct static pressure control
- Building automation and HVAC control systems
- Non-combustible gas pressure monitoring
Specifications
- Brand: Dwyer Instruments
- Model / SKU: 1920-0
- Pressure Range: .15″ w.c. to .55″ w.c.
- Switch Type: SPDT (Single-Pole, Double-Throw)
- Media: Air or non-combustible gases
- Continuous Pressure Limit: 45″ w.c.
- Conduit Connection: Included
- Port Configuration: HP (High-Pressure) back port
Why Choose the Dwyer 1920-0?
Dwyer Instruments is a trusted name in pressure measurement and control. The 1920-0 delivers accurate, repeatable switching at very low differential pressures, making it the go-to choice for HVAC professionals who need reliable filter monitoring, fan status, or airflow verification. The included conduit fitting and HP back port simplify installation in commercial and industrial environments.
