Airflow Sensors for PSG & HSAT Systems – Thermistor & Thermocouple Options

Airflow sensors for sleep diagnostics. As the primary channel for apnea and hypopnea detection, selecting the right nasal airflow sensor is critical for accurate sleep study results. Whether you need a thermistor airflow sensor for reliable temperature-based detection or a thermocouple airflow sensor for higher sensitivity and faster response, we offer solutions compatible with all major PSG and HSAT systems.

Understanding Airflow Sensor Technologies

Wondering about the difference between thermistor and thermocouple airflow sensors? Both detect airflow by measuring temperature changes between inhaled and exhaled air, but they work differently:

• Thermistor airflow sensors use a temperature-sensitive resistor. They are reliable, cost-effective, and ideal for routine clinical sleep studies. Our thermistor sensors feature a triple-thermistor array for accurate waveform reproduction.
• Thermocouple airflow sensors generate a voltage directly from temperature differences. They offer higher sensitivity, faster response time, and inherently low-noise signals, making them the preferred choice for research applications and detecting subtle flow limitations.               
• Airflow Sensors by Compatible System
  For Philips Alice Systems
  Airflow sensor for Alice 6: Thermistor sensor with keyhole connector. Triple-thermistor design specifically configured for the Alice 6 auxiliary input. Provides reliable, primary-channel airflow detection.
  Airflow sensor for Alice PDX: Thermistor sensor with 2.5mm audio jack. Direct plug-and-play connection to Alice PDX systems. Essential for scoring respiratory events.
  For Grael PSG Systems
  Airflow sensor for Grael PSG: Thermocouple airflow sensor with proprietary connector for Grael auxiliary input. Delivers high-sensitivity, low-noise signals for detailed respiratory analysis.
  Multi-System Compatible – Ideal for Diverse Labs
  Universal thermocouple airflow sensor: Compatible with Nihon Kohden PSG-1100, Cadwell Easy III, and Compumedics 802 systems. Features a standard 1.5mm DIN connector and triple-thermocouple array for superior signal quality. Perfect for labs with multiple equipment brands seeking to standardize on one high-performance sensor.            

  Key Features of Our Airflow Sensors

• Accurate temperature-based detection of nasal and oral airflow
• Triple-thermistor or triple-thermocouple arrays for reliable waveform reproduction
• Standard connectors (1.5mm DIN, keyhole, 2.5mm audio) for seamless system integration
• Compatible with major PSG platforms: Alice, Grael, Nihon Kohden, Cadwell, Compumedics
• Primary channel for apnea/hypopnea scoring according to AASM guidelines

• How to Choose the Right Airflow Sensor

  When selecting an airflow sensor for sleep studies, consider:

• Your PSG system: Do you need a sensor for Alice 6, Grael, PSG-1100, or another platform? Each system requires specific connectors (keyhole, proprietary, or 1.5mm DIN).
• Your application: For routine clinical diagnostics, a thermistor airflow sensor is often sufficient. For research, complex cases, or when maximum sensitivity is required, choose a thermocouple airflow sensor.
• Multi-system labs: If you have multiple equipment brands, our universal thermocouple sensor works across PSG-1100, Cadwell, and Compumedics systems, simplifying inventory.

• Need help finding the perfect replacement airflow sensor for Alice 6 or another system? Contact our team for expert guidance. We’ll help you select the right sensor based on your equipment and clinical needs.