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MEMS Sensors for a Safe,
Efficient, Sustainable World

High-performance, low-cost sensing solutions for gas, vacuum, and flow measurement. Engineered for reliability in critical applications across medical, industrial, and consumer markets.

Our Sensor Solutions

Precision-engineered MEMS sensors designed for performance, durability, and affordability across a wide range of industrial and commercial applications.

Mass Air Flow Sensor

Mass Air Flow Sensors

Available in various flow ranges, output options, and mechanical interfaces. Optimized for portable medical respiratory devices and HVAC systems.

  • • Wide flow range options
  • • Digital and analog outputs
  • • Compact, low-power design
  • • Ideal for medical and industrial use
Air Velocity Sensor

Air Velocity Sensors

Accurate and consistent under a wide variety of conditions — from low flow to pulsatile flow. No moving parts for long-term reliability.

  • • No moving parts
  • • High accuracy across temperatures
  • • Low pressure drop
  • • Suitable for HVAC and data centers
Liquid Flow Sensor

Liquid Flow Sensors

Accurate and consistent performance in low-flow and pulsatile environments. Ideal for medical and home appliance applications.

  • • No moving parts
  • • High repeatability
  • • Low clogging risk
  • • Suitable for water and other liquids
Vacuum Gauge

Vacuum Gauges

The most economical high-performance Pirani gauges on the market. Deliver high accuracy and long-term stability.

  • • Economical high-performance
  • • Long-term stability
  • • Used in HVAC and clean rooms
  • • Wide pressure range
A2L Refrigerant Sensor

A2L Refrigerant Sensors

Designed for leak detection in next-generation HVAC systems using mildly flammable refrigerants. Ensures safety and compliance.

  • • Fast response time
  • • High sensitivity to A2L gases
  • • Long operational life
  • • Ideal for residential and commercial HVAC
Hydrogen Sensor

Hydrogen Sensors

Critical for safety monitoring in hydrogen fuel cells, electrolyzers, and industrial processes where hydrogen is stored or used.

  • • High sensitivity to H₂
  • • Fast detection and recovery
  • • Stable in humid environments
  • • Used in fuel cell and medical facilities
Vacuum Sensors

Vacuum Sensors

Robust and reliable sensors for continuous vacuum monitoring in industrial and scientific applications.

  • • High accuracy across range
  • • Low power consumption
  • • Compact packaging
  • • Compatible with harsh environments
Custom Sensors

Custom Sensors

Tailored packaging, electronics, and calibration for unique high-volume production requirements.

  • • Custom mechanical design
  • • Application-specific calibration
  • • Low-volume customization available
  • • Fast prototyping and NPI support

Applications

Our sensors are trusted in mission-critical environments where safety, efficiency, and reliability are non-negotiable.

Respiratory Care Devices

From off-the-shelf modules to custom PCB assembly, we help bring your innovation to market faster with reliable flow sensing.

Home Appliances

Accurate, consistent water/liquid metering enhances consumer experience and strengthens brand loyalty.

Data Centers

Real-time monitoring of air circulation ensures reliable operation and optimal performance of servers.

HVAC Systems

Next-gen digital vacuum gauges, filter monitoring, and VAV damper control for energy-efficient climate systems.

Fuel Cell Hydrogen Detection

Ensure safety in hydrogen fuel cell systems with fast, reliable H₂ detection sensors.

Battery Thermal Runaway Detection

Early detection of gas emissions in battery systems to prevent catastrophic failures.

Hydrogen Electrolyzers

Monitor hydrogen purity and detect leaks in green hydrogen production systems.

Freeze Dryers

Precise vacuum measurement for pharmaceutical and food processing applications.

IVF Air Purification

Ensure ultra-clean environments in reproductive medicine with advanced gas monitoring.

We Partner With You

We help integrate exceptionally accurate, reliable, and affordable sensor technology into your products to strengthen differentiation and enable innovation.

A highly capable supply chain is just as critical to sensor reliability and quality as the unique design of the sensors themselves.

Manufacturing

Our US-based foundry partner offers scalable, high-quality silicon wafer production (ISO/TS 16949 certified).

Packaging

Module assembly partners produce high-volume, high-quality devices in ISO9001 certified facilities.

Logistics

We coordinate global delivery to suit your production needs, ensuring on-time availability.

Customization & Support

For unique requirements, our fabrication technology and supply chain allow customization even at relatively low quantities.

Our responsive customer service delivers quick answers and resolves issues throughout your product lifecycle.

10+
Years of Innovation
50+
Global Customers
1M+
Sensors Shipped
99.9%
Reliability Rate

Frequently Asked Questions

What types of sensors does Posifa offer?

Posifa offers MEMS-based sensors for gas (A2L refrigerants, hydrogen), vacuum (Pirani gauges), and flow (air, liquid, mass air) measurement.

Are your sensors suitable for medical devices?

Yes, our mass air flow and liquid flow sensors are optimized for portable respiratory care and other medical applications requiring high accuracy and reliability.

Can you customize sensors for specific applications?

Absolutely. We offer customized packaging, electronics, and calibration for high-volume production and even low-quantity custom needs.

Where are your sensors manufactured?

Our silicon wafers are produced in a US-based, ISO/TS 16949 certified foundry. Final packaging and testing are done in ISO9001 certified facilities.

Do you support global logistics?

Yes, we coordinate global delivery to meet your production timelines and supply chain requirements.

Questions? Contact Us Today!

We’re here to help you find the right sensing solution for your application.

Call us at (408) 392-0989

Email us at [email protected]

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