Digital Differential Pressure Manometer | Portable HVAC Gauge
Digital Differential Pressure Manometer | Portable HVAC Gauge
Dreamburgh Digital Differential Pressure Manometer – Handheld HVAC Air & Gas Pressure Gauge
Take precise pressure readings anywhere with the Dreamburgh Digital Differential Pressure Manometer. This compact, portable U-type meter is engineered for HVAC technicians, plumbers, and DIY enthusiasts who need fast, reliable differential pressure measurements in the field. Featuring 11 selectable pressure units, a bright backlit display, and a suite of smart data functions, this gauge keeps your workflow efficient from job start to finish.
Made in Mainland China.
Key Features
- 11 Barometric Pressure Units – Switch between PSI, kPa, Pa, mbar, mmHg, inHg, inH₂O, cmH₂O, ozf/in², mmH₂O, and bar for maximum versatility.
- Differential Pressure Measurement – Simultaneously measure two pressure sources and display the difference with ±0.3% FS accuracy.
- Max / Min / Average Recording – Automatically logs peak, lowest, and average readings so you can review trends without re-testing.
- Data Hold Function – Freeze the current reading on-screen for hands-free recording.
- Large Backlit LCD Display – Easy-to-read digits in low-light environments such as crawl spaces and mechanical rooms.
- Low Battery Indicator – Never be caught off-guard; the meter alerts you when power is running low.
- Auto Shut-Off (Optional) – Conserves battery life during extended jobs by powering down after inactivity.
- Over-Range Alert – On-screen prompt warns you instantly if input exceeds the meter's safe measuring range.
- Built-In Calibration Function – Field-adjustable zero calibration keeps readings accurate over time.
- CE Certified – Meets European conformity standards for electrical safety and EMC compliance.
Technical Specifications
| Material | ABS Plastic |
| Color | Black |
| Measuring Range | ±2 PSI / 13.78 kPa |
| Accuracy | ±0.3% FS |
| Linearity / Hysteresis | ±0.1% FS |
| Repeatability | ±0.25% FS |
| Pressure Connection | Two 1/8" (3.18 mm) quick connectors |
| Working Temperature | 0–40 °C (32–104 °F) |
| Storage Temperature | -10–60 °C (14–140 °F) |
| Dimensions | 150 × 55 × 40 mm |
| Weight | 208 g |
| Power | 9V Battery (not included) |
| Certification | CE |
What's in the Box
- 1 × Digital Differential Pressure Manometer
- 2 × Plastic Hoses
- 1 × Metal Connector
- 1 × English User Manual
Important Notes
- Please allow ±1–3 cm measurement variance due to manual sizing.
- Display color may differ slightly from product images due to monitor calibration.
- 9V battery is not included.
For guidance on best practices in HVAC system testing and measurement, visit the U.S. Department of Energy – Home Heating Systems resource, or consult OSHA's HVAC safety guidelines to ensure safe working practices when servicing pressurized systems.
Frequently Asked Questions
Q: What pressure units does this digital manometer support?
A: The Dreamburgh digital manometer supports 11 pressure units including PSI, kPa, Pa, mbar, mmHg, inHg, inH₂O, cmH₂O, ozf/in², mmH₂O, and bar — making it suitable for a wide range of HVAC, gas, and air pressure measurement applications.
Q: Can this differential pressure meter be used for HVAC duct static pressure testing?
A: Yes. With a ±2 PSI (13.78 kPa) differential range and ±0.3% FS accuracy, this handheld manometer is well-suited for measuring duct static pressure, filter pressure drop, fan performance, and other low-pressure HVAC diagnostics.
Q: Does the manometer come with a battery?
A: No, the unit requires a standard 9V battery which is not included in the package. The meter does feature a low-battery indicator and an optional auto shut-off to help extend battery life during use.
Q: How do I calibrate the digital pressure gauge?
A: The manometer includes a built-in field calibration function. Simply follow the steps outlined in the included English user manual to zero the instrument before use, ensuring accurate differential pressure readings every time.