Si-PM3 Digital Differential Pressure Manometer – Compact, Accurate HVAC Pressure Measurement
The Si-PM3 Digital Differential Pressure Manometer is a palm-sized, precision instrument designed for easy and accurate measurement of differential pressure in HVACR systems. Its compact size makes it highly portable, while its versatile features ensure it meets the demands of professionals in the field.
Accurate Pressure Measurement Across Multiple Units
The Si-PM3 supports a wide range of pressure units, allowing you to work with the measurement units that suit your needs:
- Inches of water column (inH₂O)
- Pascals (Pa)
- Millibars (mbar)
- Hectopascals (hPa)
- Millimeters of water (mmH₂O)
- Pounds per square inch (psi)
Complete Kit Included
Each Si-PM3 package comes fully equipped with:
- Two clear measurement tubes (Ø4x6 mm, 1 m / 39.37’’ length)
- Certificate of Conformity ensuring quality and calibration
- Quick Start Guide for easy setup and operation
- Three alkaline LR03 AAA (1.5 V) batteries
- Durable carrying bag for protection and portability
Advanced Functionality with the Free Si-HVACR Mobile App
Included with the Si-PM3 is the Si-HVACR Measurement Mobile App, enabling you to:
- View and record measurements in real-time on your smartphone
- Easily switch between and view different pressure parameters
- Access saved measurement history and detailed data graphs including average, minimum, and maximum values
- Generate professional reports in PDF, CSV, or XML formats
- Add up to four photos per report for thorough documentation
Features:
- Air velocity and airflow with Pitot tube (optional)
- Measuring range: -150 to+150 hPa (-60 to 60 inH2O)
- Backlit LCD screen
- Magnetic backing for easy fixing + Carrying bag
- FREE Si-HVACR Measurement MobileApp
Why Choose the Si-PM3 Digital Differential Pressure Manometer?
- Compact and portable for ease of use in any HVAC environment
- Multi-unit measurement support to fit all your pressure measurement needs
- Integrated app connectivity for real-time data visualization and efficient reporting
- Comes with all essential accessories for immediate use
Optimize Your HVACR Pressure Testing
Whether you’re performing routine system checks or detailed diagnostics, the Si-PM3 Digital Differential Pressure Manometer offers precision, convenience, and smart connectivity—making it an essential tool for HVAC professionals.
| Technical Details | |
|---|---|
| Parameters | Air velocity |
| Airflow | |
| Differential Pressure | |
| Displays | 2-line display |
| IP Protection | IP 40 |
| Battery Life | 170 hours |
| Standards | 2011/65/EU RoHS II |
| 2012/19/UE DEEE | |
| 2014/53/EU RED | |
| Wireless Connection | 1 |
| Power Supply | 3 alkaline batteries LR03 AAA 1.5 V |
| Operating Temperature | min 0.00 °C Max 50.00 °C |
| Storage Temperaturee | min -20.00 °C max 70.00 °C |
| Dimensions | 70L x 33W x 141 H |
| Weight | 200g |
| Parameters | Measuring Units | Accuracy | Measuring Range | Resolution |
|---|---|---|---|---|
| Pressure | hPa, mbar, Pa, mmH2O, inH2O, inHg, psi | ±(1.5% of value +0.2 hPa) ±(1.5% of value +0.09 inH2O) | from -150 to +150 hPa from -60 to 60 inH20 | 001 hPa / 0.001 psi / 0.01 inH20 / 1 Pa / 0.01 mbar / 0.1 mmH2O / 0.001 inHg |
| Air Flow** | m3/h, m3/min, m3/s, cfm | from 0 to 9999 m3/h | 1 m3/h / 0,001 m3/s / 0.01 m3/min / 0.1 ft3/min | |
| Air Velocity*** | m/s, fpm | from 2 to 80 m/s from 394 to 15748 fpm | 0.1 m/s 1 fpm | |
Air velocity displayed on the instrument is calculated at fixed conditions: L Pitot tube with a deprimogen coefficient of 1.0015, at 20°C (68°F) and 1013.25 hPa (29.92 inHg). When the app is used to display air velocity, these parameters can be modified.
*All the accuracies indicated in the technical details were stated in laboratory conditions, and can be guaranteed for measurements carried out in the same conditions.
**Calculated values, only available on the app
***Calculated values