Air Pressure Sensing Switch Kit, 0.08" - 1.0" WC, -40°F to 190°F, EZS-492-09

️ Air Pressure Sensing Switch Kit | OEM‑Compatible | 0.08"–1.0" WC | EZS‑492‑09

This brand‑new Air Pressure Sensing Switch Kit replaces model EZS‑492‑09 and is engineered for precise low‑pressure monitoring in HVAC, furnace, and air‑handling systems. With a wide adjustable range of 0.08" to 1.0" WC, this switch reliably senses positive, negative, and differential pressure conditions. The integrated Dial‑In Set Point Window and hex‑wrench adjustment allow fast, accurate calibration in the field.

Built with a rugged housing and a dual‑footprint design (NS2 or RSS), this switch is compatible with a broad range of OEM mounting patterns. Rated for extreme environments, it operates from ‑40°F to 190°F, making it suitable for residential, commercial, and industrial applications.

⚙️ Product Features

• Adjustable pressure range: 0.08" – 1.0" WC
• Temperature rating: ‑40°F to 190°F
• Dial‑In Set Point Window for precise calibration
• Senses: Positive, negative, and differential pressure
• Hex wrench adjustment for easy field tuning
• Dual footprint: NS2 or RSS mounting compatibility
• Condition: Brand New – Unused

Common Applications

• Furnace draft proving
• Blower and inducer monitoring
• Airflow verification in HVAC systems
• Filter, duct, and static pressure sensing
• Boiler and combustion air safety circuits

️ Installation Notes

• Mount using NS2 or RSS footprint as required by the system
• Use the hex adjustment to set the desired pressure trip point
• Verify tubing connections for positive, negative, or differential sensing
• Check system operation after installation to confirm proper switch activation

This OEM‑compatible EZS‑492‑09 pressure switch delivers precise, reliable performance across a wide range of HVAC and air‑handling systems.