The Circadia C100 System can detect distinct signals from multiple people in the same room. When multiple people are detected, the device only tracks the person that's closest to the device and in front of it. The software feature enabling the monitoring of two people in the same bed simultaneously is currently in development, more details to be announced in Q2 of 2020.
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Setup videos & guides
Download Circadia Track for iOS and Android, our tracker companion app.
Yes, each device emits a unique signal allowing two devices to be placed in the same room without any impact on accuracy. Refer to the Instructions For Use for guidance on where and how to place the device for optimal operation.
Using the Circadia C100 System is safe. The device relies on electromagnetic waves in the microwave frequency band emitting low power signals at a high speed and averaging them to recover a useful signal. The radiated output power of the C100 Sensor is 486x times below the limit of the applicable safety (ICNIRP) regulations; the emitted power levels of the C100 Sensor are far lower than those of commonly used electromagnetic transmitters, including: WiFi, Bluetooth, laptop WLAN, or mobile phone UMTS/3G. When compared to a standard 5 GHz WiFi router, the C100 Sensor is found to emit ~100x less power. The C100 Sensor is pending FDA 510(k) clearance as a medical device.
The Circadia C100 System cannot "see" the patient, it uses a form of low power radar that does not allow the recovery of a spatial picture of the user. The device is only capable of detecting motion such as respiration or body movement, without reconstructing any images.
No, the Circadia C100 System contains a microphone but this is only used to evaluate the noise level in the room and generates a single number every 30 seconds. No audio is recorded or transmitted.