HVAC
Posifa Technologies offers a comprehensive portfolio of MEMS sensor solutions designed to enhance HVAC/R performance, safety, and reliability. Our air velocity sensors provide real-time feedback to ensure stable operation by detecting airflow issues before critical failures occur. For A2L refrigerant leak detection, our advanced UL-recognized sensors utilize thermal conductivity technology for precise and timely identification of leaks, addressing safety and environmental concerns.
Our vacuum sensors revolutionize pressure measurement with integrated micro-Pirani technology, delivering superior accuracy, range, and scalability in compact designs. These sensors are the foundation of our MEMS vacuum gauges, which integrate the sensing elements with advanced electronics to deliver high performance and cost efficiency, eliminating the need for recalibration and ensuring seamless integration into existing systems. Together, these solutions equip HVAC/R professionals with the tools they need for optimal system monitoring and maintenance.
Advanced A2L Leak Detection
Ul-recognized miniaturized solution for new and existing designsÂ
- Patented solid-state thermal conductivity technology
- ~50 mm2 footprint for flexibility in design
- Humidity, pressure and temperature compensated
- Accurate in harsh environments
- Non-reactive to "poisons" or contaminants
- Long-term reliability > 15 years
- Fast response time < 250 ms
MEMS Anemometer Sensors
Easy integration into portable anemometers and fixed in-duct air velocity monitors
- Description automatically generatedFully calibrated and temperature-compensated
- Excellent signal-to-noise ratio
- Repeatability of 1 % FS
- High accuracy of 5 % FS
- Low power consumption to extend battery life in portable anemometers
- Extremely fast response times of 20 mS typical
- I2C digital output via a connector-terminated wire harness
MEMS Vacuum Sensors
Advanced MEMS Micro-Pirani Technology for Superior accuracy and efficiency
- Description automatically generatedUtilize integrated microstructures for compact, precise vacuum pressure measurement
- Delivers better accuracy, repeatability, and range compared to conventional Pirani sensors
- Minimizes power consumption while offering scalable solutions for diverse applications
- Manufactured in a state-of-the-art CMOS semiconductor fab for exceptional performance
- Ensures reliable results at a surprisingly low cost
- Supports miniaturization of vacuum systems for modern designs
High-Performance Vacuum Gauges
Cost-effective solutions for atmosphere to medium vacuum applications
- Combines MEMS Pirani sensors with advanced electronics for seamless integration
- Provides exceptional accuracy, wide measurement ranges, and long-term stability
- Eliminates the need for recalibration of replacement probes, reducing ownership costs
- Features a low working temperature for resistance to contamination
- Offers customizable output voltages for easy plug-and-play replacement in existing systems
- Includes individually calibrated probes for enhanced precision and reliability
Key Applications
Filter Monitoring
Portable Vacuum Gauges
VAV Controls
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