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Home / Shop / HVAC Test & Measurement Tools / Pressure Testing / Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester

Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester


45 in stock

FREE delivery over $99

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The Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester measures gas and static pressure and accurately tests pressure switches by simulating a draft with an internal pump. A pressure switch is a safety device that prevents the furnace from running unsafely. The SDMN6 tests the pressure switch to determine if it is working correctly or starting to fail, which can cause the furnace to run unsafely. Plus, with the Fieldpiece manometer SDMN6,  you can easily calibrate any adjustable pressure switch to manufacturers’ specifications, so there’s no need to carry a large variety of pressure switches on your truck.

The Dual Port Manometer has the ranges to measure gas pressure and the resolution needed to measure static pressure. Ideal for HVACR field service technicians, the SDMN6 can determine if the gas pressure coming into the house or out of the regulator are correct. The Fieldpiece SDMN6 measures gas pressure up to 60″ water column (WC) with a resolution of 0.1″ WC. In addition, the unit measures both positive and negative pressure, which is used for measurement on vacuum control lines. The team will take differential pressure readings and display the difference between P1 and P2 at all times in the lower right corner of the easy-to-read LCD. Four measurement scales can be used: inches of the water column, millimeters of the water column, mBar, and PSI.

The SDMN6 Fieldpiece manometer also has a zero adjust to zero out the meter in different ambient pressures. It has a hold button to hold the currently displayed reading. The auto-power-off function conserves battery life but can be disabled if desired. In the static pressure mode, the unit can measure up to 2″WC with a resolution of 0.010″WC, which enables a technician to measure slight differences in air (or static) pressure.

The Fieldpiece SDMN6 is a fully-equipped dual-port manometer with a built-in pump for testing and calibrating adjustable pressure switches, making it a complete HVAC draft and pressure monitoring tool. The Fieldpiece SDMN6 dual port manometer provides a full range of pressure readings: positive and negative, as well as differential and absolute—all with a maximum capacity of +/- 60” of water column (WC) and a resolution down to 0.01” WC for static pressure measurements. Pressure values can be displayed in four units: inches of WC, mm of WC, mBar, and PSI.

  • Fieldpiece SDMN6 Handheld Dual Port Manometer
  • Tests gas pressure
  • Tests static pressure
  • Tests differential pressure
  • Easily and properly test pressure switches for calibration with Internal pump with adjustable speed
  • Diagnose furnace performance
  • Backlit dual display
  • Zero adjust button to ambient pressure for highly accurate low pressure readings
  • Rugged rubber boot
  • Magnetic hanger
  • Auto power off
  • Field-adjustable zeroing to ambient pressure for highly accurate low pressure readings
  • Measurement range of +/- 60” WC
  • 0.01” WC max resolution for static pressure measurement
  • Up to 200 hours of operation on a single 9V battery (no pump usage), 15 hours with pump at 50% speed
  • One year manufacturer’s warranty
Fieldpiece SDMN6 Handheld Dual Port Manometer
Operating environment : 32°F to 118°F (0°C to 48°C) at <80% RH
Storage temperature : -4°F to 140°F (-20°C to 60°C), 0 to 80% RH (with battery removed)
Power : 9V, NEDA 1604A, IEC 6LR61 9V alkaline battery
Battery life (alkaline) : 200 hours (manometer only, backlight off), 12 hours (pressure switch testing @ 27% pump speed, BL off, approx -2.5″WC induced pressure w/o pump bleed accessory)
Auto power off (APO) : 15 minutes
Units of Measure : inWC, mmWC, mbar, psi
Resolution : 0.01 inWC
Overrange : “OL” or “-OL” is displayed
Max Pressure : 900inWC (17.4psi) will damage sensors
Compatible media : Dry, non-corrosive gases
Pressure ports : 2 connectors (P1, P2) for flexible tubing (4.5mm to 8mm ID)
Pump port : 1 connector (PUMP) for 5mm (~3/16 inch) ID flexible tubing
Lead jacks : 2 banana plug jacks for testing open/close switch status (continuity between terminals)
Accuracy : Stated accuracy at 0 to 50°C (32 to122°F): ±1.5% FS
Accuracy and ranges
Does this come with warranty?

Yes, it comes with a complete one year manufacturer's warranty.

What is the difference between the Fieldpiece SDMN6 and the SDMN5? Are both considered micro manometers?

The main difference is that the SDMN6 has a pump so you can dynamically test a pressure switch. Otherwise, they are the same. Also, these aren't technically referred to as micro-manometers.

If I buy this would I need to buy a manometer as well, or is this able to be used as a manometer in addition to pressure switch capabilities?

No need to purchase additional manometer. This is can be used as a dual pressure manometer or single.

My SDMN6 won’t turn on anymore how do I get it to turn on?

Take out the battery hold the power button for 45 seconds and reinstall battery. If this does not work the first time try again. If it sill won’t turn on check to see if you have a good battery or call fieldpiece for an RMA.

Why won’t my pump work?

The pump in the SDMN6 is very sensitive and the increase button or decrease button needs to be pressed multiple times before you will see a change in the pump.

  • (1) Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester
  • (1) Four Pocket Carrying Case ANC1
  • (2) Static Pressure Probes ASP2s
  • (2) Pressure Tubes RMA316
  • (2) Quick Connect Leads
  • (3) Hoses
  • (1) Y-splitter
  • (2) Hoses with Brass Screw Fittings

Customer Reviews

Based on 1 review
Jeremy K.
Well engineered

Integrating the pressure switch tester is a well thought out concept and very good engineering to integrate into this small form factor.

Fieldpiece SDMN6
Fieldpiece SDMN6 Dual Port Manometer and Pressure Switch Tester