Fieldpiece SDMN5 Dual-Port Manometer for Static Air, LPG & Natural Gas Pressure

The Fieldpiece SDMN5 is a rugged dual-port manometer built for HVAC/R technicians who need fast, reliable readings for static pressure, gas pressure and pressure differential. It suits routine service, commissioning and fault-finding where clean, repeatable pressure measurements matter more than guesswork.

If you’re comparing options, browse our manometers collection or see more from the Fieldpiece HVAC tools range.

Quick summary

The SDMN5 measures P1, P2 or differential pressure (P1-P2) across common HVAC applications such as blower static, filter pressure drop, coil pressure drop and appliance gas pressure checks. It is compact, magnetic, battery-powered and designed for day-to-day field use.

Best for

• HVAC/R technicians checking duct static pressure and pressure drop across filters, coils and fans
• Licensed gasfitters and qualified service technicians checking LPG or natural gas appliance pressures
• Tradies who want a simple standalone meter without jumping straight to wireless probes
• Apprentices learning pressure testing workflows under supervision

Not ideal for

• Users who need app logging, remote viewing or multi-probe wireless workflows
• Pressure-switch calibration work where the Fieldpiece SDMN6 is a better fit
• Liquid media or corrosive gases
• Unlicensed gas work

Why tradies like the SDMN5

• Dual-port testing: Read P1, P2 or differential pressure without swapping tools mid-job
• Useful field range: Covers common HVAC static and gas pressure checks
• Fine static resolution: Helpful when chasing airflow restrictions and pressure drop issues
• Magnetic hanger: Keeps the meter where you need it while your hands stay free
• Portable build: Compact body, rubber boot and simple controls suit everyday van stock

Common use cases

• Checking total external static pressure across residential and light commercial air handlers
• Measuring pressure drop across evaporator coils, condenser coils and filter banks
• Verifying appliance inlet and outlet gas pressure where work is carried out by appropriately licensed trades
• Comparing upstream and downstream readings to diagnose restrictions or draft issues

Key specs

What’s included

• Fieldpiece SDMN5 dual-port manometer
• 2 x 3/16" tubes with brass fittings
• 2 x 3/16" to 5/16" tube adapters (RMA316)
• 9V battery (installed)
• Operator’s manual

Compatibility notes

This model is designed for dry, non-corrosive gases and typical HVAC pressure testing workflows. It is a strong fit for static pressure and gas pressure measurement, but it is not a refrigerant manifold and it is not intended for liquid media.

For technicians wanting magnetic static probes for duct and airflow work, pair it with the Fieldpiece ASP2 pitot tubes. If you want wireless logging and app-based readings, step up to the Fieldpiece JL3MN or the Fieldpiece JL3KM2 wireless manometer kit.

What you may also need

• Fieldpiece ASP2 pitot tubes for easier static pressure checks in ductwork
• Other manometers if you’re comparing wired vs wireless options
• Air balancing guidance if static pressure is part of a broader airflow diagnosis
• Hoses and fittings guide if you want a refresher on connection sizes and setups

Australian compliance and safety note

Gas appliance pressure testing and servicing is regulated in Australia. Use this tool only within your trade scope and licensing requirements. For example, NSW states that gasfitting work requires the appropriate licence or certificate. If your work also involves handling scheduled refrigerants, follow the current ARCtick Refrigerant Handling Code of Practice. For official product specifications, see the Fieldpiece Australia SDMN5 page.

FAQ

What does the Fieldpiece SDMN5 measure?

It measures gas pressure, static pressure and differential pressure. You can read P1, P2 or the difference between them for airflow and appliance diagnostics.

Can the SDMN5 be used for LPG and natural gas work?

Yes, it is intended for LPG and natural gas pressure checks, but any gas work must be carried out by appropriately licensed trades in line with local rules.

Is the SDMN5 good for duct static pressure testing?

Yes. Its fine resolution makes it useful for checking blower static pressure and pressure drop across filters, coils and similar airflow restrictions.

Does the SDMN5 include hoses and adapters?

Yes. It includes two 3/16" tubes with brass fittings, two 3/16" to 5/16" adapters, a 9V battery and the operator’s manual.

What is the difference between the SDMN5 and SDMN6?

The SDMN5 is the simpler dual-port manometer for pressure reading. The SDMN6 adds a built-in air pump for pressure-switch calibration work.

Is this a refrigerant gauge or manifold?

No. The SDMN5 is a manometer for pressure testing with dry, non-corrosive gases. It is not a refrigerant manifold set.

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