Lennox Y9240 – Fieldpiece SDMN5 Dual Port Manometer is a professional-grade HVAC pressure measurement tool designed for accurate diagnostics, commissioning, and routine service. Built for modern HVAC/R systems, this digital dual port manometer is A2L compatible and well-suited for working with today’s low-GWP refrigerants and high-efficiency equipment.

The Fieldpiece SDMN5 allows technicians to quickly measure positive and negative pressure, differential pressure, and gas pressure with confidence. Dual pressure ports make it easy to compare readings simultaneously, reducing setup time and improving diagnostic accuracy in the field. Its compact handheld design fits easily in a tool bag while remaining durable enough for daily use on job sites.

This manometer is commonly used for static pressure testing, gas valve adjustments, draft measurements, and airflow diagnostics in residential and light commercial HVAC systems. The clear digital display provides fast, easy-to-read results, helping technicians make precise adjustments and verify system performance during installation or service calls.

Designed with HVAC professionals in mind, the SDMN5 delivers dependable performance, repeatable accuracy, and compatibility with current industry safety standards. Lennox Y9240 is an excellent choice for contractors who need a reliable pressure measurement tool for troubleshooting furnaces, air handlers, duct systems, and gas appliances.

Key features and benefits include:

• Dual port digital manometer for positive, negative, and differential pressure measurement
• A2L compatible for use with modern low-GWP refrigerant systems
• Ideal for gas pressure testing, static pressure checks, and system diagnostics
• Compact, rugged design for everyday HVAC service work
• Fast response and easy-to-read digital display
• Trusted Fieldpiece quality for professional HVAC technicians

Lennox Y9240 – Fieldpiece SDMN5 Dual Port Manometer is a dependable diagnostic tool that helps improve accuracy, efficiency, and confidence on every HVAC job. A smart addition to any professional technician’s toolkit.