Fieldpiece SDMN6 Dual-Port Manometer with Internal Pump | Pressure Switch Tester
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Fieldpiece SDMN6 Dual-Port Manometer with Internal Pump — Pressure Switch Tester & Calibrator
The Fieldpiece SDMN6 is a dual-port manometer with an integrated internal pump, designed for HVAC/R technicians who need to measure gas and static pressure and test or calibrate furnace pressure switches in the field. The internal pump simulates a draft, allowing you to test whether a pressure switch is operating correctly — or starting to fail — without carrying a separate pump. You can also calibrate adjustable pressure switches to manufacturer specifications on the job.
The SDMN6 measures gas pressure up to 60" water column (WC) with 0.1" WC resolution, and static pressure up to 2" WC with 0.010" WC resolution. Four measurement scales are available: inches WC, millimetres WC, mBar, and PSI.
Gas appliance pressure testing and pressure switch servicing requires appropriate trade qualifications and licensing. Confirm licensing and compliance requirements with the relevant authority in your state or territory before undertaking gas-related work. Confirm all specifications against the Fieldpiece SDMN6 datasheet.
Key Features
- Dual-port manometer — measures gas pressure, static pressure, and differential pressure
- Internal pump — simulates draft for pressure switch testing without a separate pump
- Tests pressure switches to determine if operating correctly or starting to fail
- Calibrates adjustable pressure switches to manufacturer specifications
- Gas pressure range: up to 60" WC | Resolution: 0.1" WC
- Static pressure range: up to 2" WC | Resolution: 0.010" WC
- Measures positive and negative pressure (vacuum control lines)
- Differential pressure display (P1 − P2) shown continuously in lower right of LCD
- Four measurement scales: inWC, mmWC, mBar, PSI
- Zero adjustment for different ambient pressures
- Hold button and auto power-off (APO, disableable for data logging)
- 1-year warranty
What’s Included
- SDMN6 Dual-Port Manometer and Pressure Switch Tester
- ANC1 Four-Pocket Carrying Case
- ASP2 Static Pressure Probes
- RMA316 Pressure Tubes
- Quick Connect Leads
- Hoses and Y-splitter
- Hoses with Brass Screw Fittings
Best For
- HVAC/R technicians servicing gas furnaces who need to test and calibrate pressure switches
- Gas pressure measurement at appliance inlets and outlets
- Static pressure measurement across blowers, filters, and ductwork
- Technicians who want to reduce the number of pressure switches carried on the truck by calibrating adjustable switches on-site
Check Before Ordering
- Gas appliance pressure testing and pressure switch servicing requires appropriate trade qualifications — confirm licensing requirements in your state or territory
- For gas and static pressure measurement without pressure switch testing, see the SDMN5
- Confirm warranty terms with HVAC Trade Supply at time of purchase
Frequently Asked Questions
What is the difference between the SDMN5 and SDMN6?
The SDMN5 measures gas pressure, static pressure, and differential pressure. The SDMN6 adds an internal pump for testing and calibrating furnace pressure switches — suited to technicians who regularly service gas furnaces.
Can the SDMN6 calibrate adjustable pressure switches?
Yes — the internal pump allows you to calibrate adjustable pressure switches to manufacturer specifications on-site, reducing the need to carry a large variety of replacement switches.
What is the warranty?
1 year. Confirm current terms with HVAC Trade Supply at time of purchase.
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