RP3112D Differential Pressure Sensor for HVAC
A compact MEMS differential pressure sensor designed for VAV systems, AHU units, air filter monitoring, airflow control, and building automation applications.
Designed for Modern HVAC Airflow Monitoring
24-bit Digital I²C Output
Easy MCU and HVAC controller integration.
Factory Calibrated
No external calibration required. Ready to use out of the box.
Fast 2.5 ms Response Time
Ideal for dynamic airflow monitoring and real-time control.
Compact SOIC-16 Package
Suitable for compact PCB-level integration in HVAC controllers.
Temperature Compensated
Stable performance across the -20°C to 100°C operating range.
Technical Specifications
Pressure Type
Differential
Pressure Range
±500 Pa to ±20 kPa
Output Signal
24-bit digital I²C
Supply Voltage
3.3 V or 5.0 V
Accuracy
±1% FS @ 25°C
Total Error
±2.5% FS over full temperature range
Response Time
2.5 ms
Operating Temp
-20°C to 100°C
Media
Dry, non-corrosive air or gas
Package
SOIC-16 with dual vertical pressure ports
Where RP3112D Fits in HVAC Systems
Air Duct Monitoring
Measure duct static and differential pressure for balanced airflow distribution.
Filter Blockage Detection
Detect pressure drop across HVAC filters and support predictive maintenance.
Fan & Airflow Control
Support stable airflow control in variable air volume (VAV) systems.
Building Automation
Monitor room and duct pressure conditions in smart building systems.
HVAC OEM Equipment
Easy PCB integration for air handling units, rooftop units, and heat recovery ventilators.
Available Pressure Ranges
| Part Number | Pressure Range |
|---|---|
| RP3112D-C101 | ±0.5 kPa |
| RP3112D-C102 | ±1 kPa |
| RP3112D-C103 | ±2.5 kPa |
| RP3112D-C105 | ±10 kPa |
| RP3112D-C107 | ±20 kPa |
Need a custom range? Contact our engineering team
RP3112D vs. Traditional Analog Sensors
| Feature | RP3112D Digital MEMS | Traditional Analog |
|---|---|---|
| Output Signal | 24-bit digital I²C | Analog voltage (0.5–4.5 V) |
| Calibration | Factory calibrated, ready to use | External calibration required |
| Temperature Compensation | Built-in digital compensation | External signal conditioning needed |
| EMC Susceptibility | Digital output, low noise | Analog noise concerns |
| Integration Complexity | Direct MCU connection | Additional ADC and conditioning |
| Time to Market | Shorter design cycle | Longer integration cycle |
Frequently Asked Questions
Need a Differential Pressure Sensor for Your HVAC Project?
Contact Reliava Technology to discuss samples, pressure range, PCB integration, or OEM customization.
Sales Email
[email protected]Request Samples & Pricing
Tell us about your HVAC application. Our team will recommend the right pressure range.
Ready to integrate RP3112D into your HVAC system?
Our engineering team can help with pressure range selection, PCB layout guidance, and OEM customization.