- Condition: Factory New
- Warranty: 6 Months
- Weight: 0.3 lb
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Learn more:
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Purchasing Restriction: Medical license or prescription required
- MFR: SleepSense Ships from Manufacturer
- MPN: 1459
- Phone: (888) 757-7367
Frequently asked questions
Is the sensor compatible with Philips Respironics Alice units?
Yes, the SleepSense Alice 3 Thermistor Flow Sensor is specifically engineered for full compatibility with Philips Respironics Alice systems, providing the strongest and most accurate respiration airflow signal.
It integrates seamlessly with the following models for professional sleep studies (Polysomnography or PSG):
- Alice 3
- Alice 4
This thermistor sensor is powered either by a SleepSense interface box or the existing PSG system.
Does the thermistor flow sensor provide accurate readings?
Yes, the SleepSense Alice 3 Thermistor Flow Sensor is engineered for professional medical use to provide the strongest and most accurate indication of respiration airflow based on temperature changes.
Key features ensuring its accuracy include:
- Triple Thermistor Composition: It uses three thermistors (heat-sensitive resistors) to detect minute temperature fluctuations between inhaled and exhaled air.
- Analog Voltage Signal: The sensor generates a small analog electrical voltage signal that is directly proportional to these air temperature changes, providing a precise and dependable airflow reading.
- System Compatibility: It is fully compatible with Philips Respironics Alice 3 and Alice 4 recording systems.
What is the length of the sensor cable?
The SleepSense Alice 3 Thermistor Flow Sensor features a long lead wire designed for flexibility in clinical environments.
Key specifications for the cable include:
- Length: 200 cm
- Insulation: White PVC
What are the required operating environment conditions?
The SleepSense Alice 3 Thermistor Flow Sensor is designed for reliable use within specific environmental parameters, covering both clinical operation and storage:
- Operating Temperature: 40 °F to 104 °F
- Storage Temperature: -4 °F to 140 °F
- Operating and Storage Humidity: 5% to 95% (non-condensing)
Where is the SleepSense Alice 3 Thermistor Flow Sensor placed on the patient?
The sensor is positioned on the patient’s upper lip, under the nostrils.
Does this sensor provide accurate airflow measurement?
Yes, the SleepSense Alice 3 Thermistor Flow Sensor is specifically engineered to provide the strongest and most accurate indication of respiration airflow.
This high level of accuracy is achieved through its advanced mechanism:
- Triple Thermistor Design: The sensor utilizes three thermistors (heat-sensitive resistors) to accurately detect minute temperature differences between inhaled and exhaled air.
- Reliable Signal: It generates a precise, small analog electrical voltage signal that is proportional to these temperature variations, offering dependable data for compatible recording systems like the Philips Respironics Alice 3 and Alice 4.
Note: This device is intended for professional medical use only.
What is the storage temperature range for the SleepSense Alice 3 Thermistor Flow Sensor?
The recommended storage temperature range is -4 to 140 °F.
What material is the cable insulation made of?
The cable insulation is made of white PVC.
Is this sensor for professional use?
The SleepSense Alice 3 Thermistor Flow Sensor is designed for professional use, specifically by or on the order of a physician. It’s intended to be used on healthy skin.
How does the thermistor sensor accurately measure airflow?
The SleepSense Alice 3 sensor is engineered to provide the strongest and most accurate indication of respiration airflow using a professional-grade design incorporating three thermistors.
Here is how this reliable flow measurement is achieved:
- Detection: The sensor uses three heat-sensitive resistors (thermistors) placed on the patient’s upper lip, under the nostrils.
- Mechanism: These thermistors detect the subtle temperature differences between inhaled air (cooler) and exhaled air (warmer).
- Signal Output: This temperature variation is precisely converted into a small analog electrical voltage signal.
- Result: The resulting voltage is directly proportional to the patient’s respiration airflow, providing a clear and dependable signal for compatible Polysomnography (PSG) recording systems like the Philips Respironics Alice 3 and Alice 4.