Posifa Technologies will demonstrate how its MEMS-based sensing solutions improve safety, enable early detection of critical conditions, and enhance overall system reliability across applications such as EV battery safety, refrigerant leak detection, HVAC airflow monitoring, and vacuum measurement. The exhibit will feature new hydrogen sensing technology for early detection of battery off-gas events, along with solutions for precise airflow, vacuum, and gas monitoring in demanding environments.
Hydrogen Sensor for Early Detection in EV Battery and Safety Systems
The PGS5100 Series detects hydrogen concentrations from 0 % to 25 % using MEMS thermal conductivity technology, enabling early identification of abnormal conditions in EV battery packs, fuel cell systems, and industrial environments. By detecting hydrogen during the early off-gas phase — before thermal runaway escalation — the sensor provides a critical safety window for intervention in EV and BESS applications. Integrated humidity and pressure compensation ensure accurate measurement across changing conditions, while fast response and > 15-year stability support long-term monitoring. With robust packaging and digital RS-485 output, the sensor is designed for reliable operation in harsh, safety-critical environments.
Read more about Posifa’s PGS5100 hydrogen sensor
MEMS Pirani Vacuum Sensor for Wide-Range, Portable Measurement
The PVC4001-C combines a MEMS Pirani sensor with an onboard barometric pressure sensor to deliver accurate vacuum measurement from 0.001 Torr to 900 Torr. Designed for compact OEM integration, it provides fast response (< 200 ms), low power consumption, and stable performance across changing conditions. An integrated microprocessor enables digital I²C output and user calibration, making the device well suited for portable vacuum gauges and leak detection in sealed systems.
Read more about Posifa’s PVC4000 series vacuum sensor
PAV5000 Series MEMS Anemometer Sensor
Fully calibrated and temperature-compensated for easy integration into portable anemometers and fixed in-duct air velocity monitors, the cost-effective PAV5000 series sensor provides accurate air speed measurement in a robust, probe-style package. While traditional thermistor-based anemometer sensors connect to the circuit via a thin thread, the PAV5000’s sensing element consists of a solid silicon chip flush-mounted onto a PCB, making it robust against damage caused by vibration, dropping, or collisions.
Read more about Posifa’s PAV5000 MEMS anemometer sensor
UL-Recognized PGS6032-R and PGS6454-R MEMS A2L Refrigerant Leak Sensors
UL-recognized by UL Solutions, the PGS6032-R and PGS6454-R sensors meet the safety and performance requirements for refrigerant detection systems outlined in Annex LL of UL 60335-2-40:2022, fourth edition. These requirements apply to household and similar electrical appliances, including heat pumps, air conditioners, and dehumidifiers. The PGS6000 series sensors accurately detect A2L refrigerant concentration in air by measuring changes in thermal conductivity of the gas mixture inside the cabinet. This technology enhances safety and efficiency through early leak detection, while supporting long-term reliability of 15 years or more in harsh environments.
Read more about Posifa’s PGS6000 MEMS thermal conductivity sensors
PVC6800 MEMS Pirani Piezoresistive Vacuum Gauge
PVC6800 series vacuum gauges deliver high accuracy and long-term stability for ATM to medium vacuum applications. By incorporating the sensing element and digital electronics within an individually calibrated probe, Posifa’s vacuum gauges eliminate the need for calibration of replacement probes, minimizing total cost of ownership. The devices can be customized to emulate output voltages from other manufacturers’ gauges, allowing for easy plug-and-play replacement without software or hardware changes.
Read more about Posifa’s PVC6800 series MEMS Pirani gauges
About Posifa Technologies
Posifa Technologies designs and manufactures high-performance, low-cost sensor and sensing solutions, including flow and gas sensors, and vacuum sensors and gauges. The company’s products are designed to meet the needs of demanding applications in HVAC, battery management systems, medical devices, data centers, and more. Posifa serves its global customer base through direct sales and a network of distributors. The company is headquartered in San Jose, California, with an office in Shenzhen, China. More information is available at http://posifatech.com.
Link to further information:
https://posifatech.com/sensors-converge-2026/
| Agency Contact Bob Decker Redpines +1 415 409-0233 bob.decker@redpinesgroup.com |
Company Contact Bob Annesley Posifa Technologies +1 435 557-9995 bob@posifatech.com |
Posifa Technologies 131 East Brokaw Road San Jose, California 95112 www.posifatech.com |
The post Posifa Technologies Sensors Converge Exhibitor Preview May 6-7, 2026 Santa Clara Convention Center Booth 509 first appeared on HVAC Insider.