Physical Characteristics Dimension Host connection (Power and communication) Electrical Absolute Maximum characteristics - Power Supplies Main Power Supply DC IN Operational Characteristics - Power supplies Main Power supply, DC-IN Power consumption - Power supplies Main Power supply, DC-IN @ 5V Operating Conditions Relative Humidity Ambient Operating Temperature Performance Respiration Rate Heart Rate Movement Range Accuracy ±4% or ±1.5 Br/min, whichever is greater The System detects heart rate that is > 1.8 times the respiration rate. Total system accuracy including undetected signals 90% for RR and for HR. The total system accuracy was measured as +/- 10% of the predicate device