Wohler DM 602 Digital Manometer
The Wöhler DM 602 is a compact digital manometer designed for precise gas pressure, draft, and differential pressure measurements. With a robust ±1,204 inWC sensor, illuminated display, and integrated temperature measurement, it provides fast, stable readings for HVAC and combustion service work.
Detailed Overview
Precision Pressure Measurement in a Compact Digital Manometer
The Wöhler DM 602 Digital Manometer is a reliable handheld tool for fast, accurate pressure testing in the field. Its sensor is designed to provide stable readings in any position, and the large illuminated display improves readability in basements, mechanical rooms, and other low-light environments.
Designed for everyday HVAC and combustion service work, the DM 602 supports quick “switch on, read, done” operation for burner setup, draft checks, and system diagnostics. It also supports internal and external temperature measurement for added troubleshooting value.
Digital Manometer Features for HVAC Service Technicians
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High-precision differential pressure measurement up to ±1,204 inWC
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Stable readings in any position for consistent results during adjustments
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Large illuminated display for quick readouts on the job
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Selectable pressure and temperature units
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Integrated magnets and rugged housing for hands-free use on equipment panels
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Infrared interface for on-site printouts using a compatible thermal printer
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Compact and lightweight
Gas Pressure Measurement for Furnaces and Gas Burners
Use the DM 602 to measure and set gas pressure during installation, commissioning, and maintenance, including:
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Incoming gas pressure checks
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System pressure verification
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Rest pressure and nozzle pressure support (with the appropriate accessory setup)
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Burner adjustment and tuning workflows
Chimney Draft Measurement and Differential Pressure Testing
The DM 602 is well-suited for draft and airflow-related diagnostics, including:
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Chimney draft measurement at the flue
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Differential pressure measurement across fans and components
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System performance checks where small pressure changes matter
Temperature Measurement for Combustion and HVAC Diagnostics
In addition to pressure, the DM 602 supports temperature readings to help verify operating conditions:
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Internal temperature measurement for quick ambient/reference checks
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External temperature measurement using compatible temperature probes (e.g., clamp or surface probes)
Key Benefits
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✓Fully Tested & Certified
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✓30-Day Risk-Free Returns
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✓1-Year Full Warranty
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✓Professional Calibration Services
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✓Trade-In Program Available
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✓Fast & Reliable Delivery
What's in the Box
- Digital manometer
- Batteries
- Hand strap
Technical Specifications
Pressure and Temperature Measurement Specifications
| Measurement | Range | Accuracy | Resolution |
|---|---|---|---|
| Differential Pressure | ±1,204 inWC | < 3% | 0.01 inWC |
| Internal Temperature | -4 to 140 °F | ±30 °F | 0.1 °F |
| External Temperature (with temperature measuring clamp) | -4 to 1,472 °F | ±30 °F (-4…153 °F) otherwise 1.5% |
0.1 °F |
General Specifications
| Spec | Value |
|---|---|
| Device Type | Digital Manometer |
| Pressure Measurement Type | Differential Pressure |
| Maximum Pressure Range | ±1,204 inWC |
| Display | Illuminated digital display |
| Temperature Measurement | Internal sensor and external probe connection |
| Temperature Units | Selectable |
| Pressure Units | inWC |
| Interface | Infrared (IR) interface for printer connection |
| Housing | Shockproof casing |
| Mounting | Integrated magnets for hands-free use |
| Power Supply | Battery powered |
| Design | Compact, handheld instrument |
| Country of Origin | Germany |
(Including Calibration Support & Trade-In Options)