SleepSense Alice 5 Thermistor Flow Sensor

Yes, the SleepSense Thermistor Flow Sensor (#1461) is specifically engineered for full compatibility with the Philips Respironics Alice 5 PSG System.

This sensor ensures highly accurate respiratory monitoring due to its specialized design:

• Dedicated Connection: It connects directly and seamlessly to the thermal-flow input of the Alice 5 unit.
• High Accuracy: It utilizes three thermistors to measure temperature changes, generating the strongest and most accurate respiration airflow signal.
• Convenient Powering: The sensor is powered directly by the Alice 5 PSG System itself.

Yes, the SleepSense Flow Sensor is engineered for high-precision respiration measurement, providing the strongest and most accurate respiration airflow signal.

Key technological features include:

• Triple Thermistors: The sensor utilizes three thermistors (heat-sensitive resistors) to detect minute temperature changes in inhaled and exhaled air.
• Signal Generation: This process generates a clear, reliable analog electrical voltage signal (approximately 1 mV output with the interface).
• Material and Compatibility: The sensor features a small rounded TPE (Thermoplastic Elastomer) center, making it durable and easy to clean. It is designed exclusively for the thermal-flow input of Philips Respironics Alice 5 Systems.

The SleepSense Alice 5 Thermistor Flow Sensor is designed specifically for use with Philips Respironics Alice 5 Systems. It connects to the system’s thermal-flow input, allowing for accurate respiration airflow measurement.

This sensor utilizes three thermistors (heat-sensitive resistors) to measure respiration airflow by detecting temperature changes in inhaled and exhaled air.

For optimal signal processing with the SleepSense Alice 5 Thermistor Flow Sensor, the following filter settings are recommended:

• High Pass Filter: 0.1 Hz
• Low Pass Filter: 70 Hz

The SleepSense Alice 5 Thermistor Flow Sensor has specific requirements for both operation and storage to ensure accurate performance.

Operating Conditions:

• Temperature: 40 to 104 °F (5 to 40 °C)
• Humidity: 5 to 95% (non-condensing)

Storage Conditions:

• Temperature: -4 to 140 °F (-20 to 60 °C)
• Humidity: 5 to 95% (non-condensing)

The SleepSense Alice 5 Thermistor Flow Sensor is designed to be placed underneath the patient’s nostrils.

This placement is critical for optimal measurement, allowing the three internal thermistors to accurately detect the temperature changes of air inhaled and exhaled during the patient’s breathing cycle.

The SleepSense Alice 5 Thermistor Flow Sensor is engineered to provide a highly accurate signal for monitoring respiratory patterns during professional sleep studies.

Its function relies on thermal detection:

• It contains three internal thermistors (heat-sensitive resistors).
• These thermistors detect the temperature changes between inhaled (cooler) and exhaled (warmer) air.
• This thermal variation generates a corresponding analog electrical voltage signal, which reliably indicates the respiration airflow when processed by the Philips Respironics Alice 5 PSG System.

The SleepSense Alice 5 Thermistor Flow Sensor generates a highly reliable analog electrical voltage signal that is proportional to the temperature changes of inhaled and exhaled air. This technology uses three thermistors to provide the strongest and most accurate respiration airflow signal detectable.

Specific signal output characteristics depend on the system setup:

• With Interface: Approximately 1 mV (millivolt).
• Without Interface: Characterized by an NTC
  change (Negative Temperature Coefficient Ohms change).

Yes, the SleepSense Alice 5 Thermistor Flow Sensor is designed for hassle-free operation in professional settings. It is engineered to be easy to use and clean, which helps streamline maintenance and preparation between patient uses.