Which Fieldpiece Manometer Is Right for You?

When it comes to measuring gas pressure, static pressure, or pressure differential, every HVAC technician needs a reliable manometer. But not every technician works the same way.

Some technicians want a rugged, dependable tool for everyday service calls. Others need advanced pressure switch testing capabilities or the flexibility of wireless measurements. That’s why Fieldpiece offers multiple manometer options designed to fit different workflows.

In this guide, we’ll compare three popular Fieldpiece manometers:

• SDMN5 Dual Port Manometer
• SDMN6 Dual Port Manometer with Pressure Switch Tester
• JL3KM2 Job Link® System Dual Port Manometer Probe Kit

By the end, you’ll have a better understanding of the best HVAC manometer for the work you do every day.

What Should You Look for in a Manometer?

Not all manometers are built for the same applications. Before choosing one, consider the types of systems you service and the diagnostics you perform most often.

Here are a few key factors to keep in mind:

• Static pressure measurement for airflow diagnostics
• Gas pressure measurement for furnace installation and service
• Differential pressure to compare pressure between two points
• Ease of use for everyday service calls
• Portability to move efficiently between jobs
• Workflow efficiency to help complete diagnostics faster
• Wireless connectivity for remote measurements and digital reporting
• Advanced features for specialized testing

The right manometer isn’t necessarily the one with the most features, it’s the one that fits your workflow.

SDMN5 Dual Port Manometer
Best for:

HVAC professionals who want a dependable, straightforward dual-port manometer.

The SDMN5 is built for technicians who need simple, accurate pressure measurements. Whether you’re checking gas pressure during a furnace startup or measuring static pressure as part of an airflow diagnosis, it delivers the performance you need in a rugged, easy-to-use package.

Key Features

• Dual-port measurements
• Gas pressure measurement
• Static pressure measurement
• Pressure differential (P1-P2)
• Resolution down to 0.01” WC for static pressure measurement
• Magnetic hanger
• Rugged rubber boot
• Simple zero adjustment button
• Wide pressure range (-60.0” to 60.0” WC)

Why You’ll Like It

The SDMN5 is designed for everyday use. Its simple operation and durable construction make it a reliable addition to any technician’s tool bag.

If you primarily check gas pressure, static pressure, and airflow diagnostics, the SDMN5 gives you everything you need without extra complexity.

SDMN6 Dual Port Manometer with Pressure Switch Tester
Best for:

Technicians who regularly diagnose furnaces and replace pressure switches.

The SDMN6 includes everything technicians appreciate about the SDMN5 while adding one feature that sets it apart: an integrated Pressure Switch Tester.

What Makes It Different?

Replacing an adjustable universal pressure switch often requires setting the switch to match the manufacturer’s specifications. Traditionally, that meant using multiple tools or extra steps during installation.

With the SDMN6’s built-in Pressure Switch Tester, technicians can quickly verify pressure switch operation and easily set adjustable universal pressure switches with one instrument.

Key Benefits

• Everything the SDMN5 offers
• Integrated Pressure Switch Tester
• Quickly set adjustable universal pressure switches
• Verify pressure switch operation
• Simplify furnace diagnostics

Why It Saves Time

For technicians who service residential furnaces every day, the SDMN6 helps eliminate guesswork during pressure switch replacement. Instead of switching between multiple tools, you can diagnose, test, and set pressure switches more efficiently, helping reduce installation time while improving confidence in your repairs.

If furnace diagnostics are a regular part of your day, the SDMN6 is built for you.

JL3KM2 Job Link® System Dual Port Manometer Probe Kit
Best for:

Technicians who want maximum efficiency and advanced diagnostics.

The JL3KM2 takes a different approach than a traditional handheld manometer. Instead of carrying one instrument connected by hoses, the kit uses two wireless manometer probes that transmit pressure readings directly to the Job Link® System App.

By placing each probe exactly where measurements are needed, technicians can capture more accurate readings while working more efficiently.

Key Features

• Wireless range up to 1,000 feet
• Independent wireless probes
• Measure static, gas, and draft pressure
• View multiple pressure readings simultaneously
• Compatible with the Job Link® System App
• Precise probe placement for optimal measurements

Workflow Advantages

Wireless probes eliminate the hassle of dragging long hoses around the jobsite.

With the JL3KM2, you can:

• Monitor readings remotely
• Measure return, supply, and total external static pressure simultaneously
• Capture readings from optimal locations throughout the system
• Easily document results within the Job Link® System App

If you’re focused on improving efficiency, streamlining airflow diagnostics, or creating digital reports for customers, the JL3KM2 gives you the flexibility to work untethered.

Side-by-Side Comparison

What’s the Best HVAC Manometer for You?
Choose the SDMN5 if…

• You want a dependable everyday manometer.
• You primarily perform standard pressure measurements.
• Simplicity and durability are your priorities.

Choose the SDMN6 if…

• You regularly service residential furnaces.
• You want to easily test adjustable pressure switches.
• You frequently replace or adjust universal pressure switches.
• You want one tool that combines pressure measurements with pressure switch testing.

Choose the JL3KM2 if…

• You want to work wirelessly.
• You already use the Job Link® System.
• You perform comprehensive airflow and pressure diagnostics.
• Efficiency, documentation, and remote measurements are important to your workflow.

Every technician works differently, which is why Fieldpiece offers multiple manometer options instead of a one-size-fits-all solution.

The SDMN5 delivers dependable performance for everyday pressure measurements. The SDMN6 builds on that foundation with a unique integrated Pressure Switch Tester that simplifies furnace diagnostics. And the JL3KM2 brings pressure testing into a wireless workflow with Job Link® connectivity for faster diagnostics and easy reporting.

No matter which one you choose, you’ll have a tool designed to help you diagnose with confidence, work more efficiently, and deliver accurate results on every call.