Masmio W1 Appendix
Masimo Corporation 14 www.masimo.com
Oxygen Level Accuracy (ARMS*)
Parameter Specification
SpO
2
(No Motion) [1] (Low Perfusion) [2] 2% A
RMS,
over the range 70% to 100% for Adults
Pulse Rate (No Motion)
3 bpm A
RMS,
over the range of 25 bpm to 240 bpm for Adults
Respiration Rate by Pleth (No Motion) [3]
3 rpm A
RMS
, over the range 4 RPM - 70 RPM, for Adults
* A
RMS
accuracy is a statistical calculation of the difference between device measurements and reference measurements. Approximately two-thirds of the device
measurements fell within +/- A
RMS
of the reference measurements in a controlled study.
HR Accuracy (ARMS)*
Heart Rate (HR)
Range of 25 bpm to 240 bpm ≤ 5 bpm
* A
RMS
accuracy is a statistical calculation of the difference between device measurements and reference measurements. Approximately two-thirds of the device
measurements fell within +/- A
RMS
of the reference measurements in a controlled study.
Physical Characteristics
Physical Characteristics
Watch Face Size 40mm (1.57”)
Weight with Watchband 54 g (1.9 oz.)
Display Type 16 bits color display with brightness adjustment
Expected Service Life 3 Years
Protection against harm from solid and liquid ingress IP24, Protected from objects greater than 12 millimeters and water spray from any direction.
Electrical
Battery
Type Internal Li-ion rechargeable
Capacity Approx. 26 hrs. [4]
Charge Time 3 hrs. [5]
Environmental
Environmental Conditions
Operating Temperature 0°C to 35°C (32°F to 95°F)
Storage/Transport Temperature -20°C to 60°C (-4°F to 140°F) [6]
Operating Humidity 10% to 95% RH (non-condensing)
Storage/Transport Humidity 10% to 95% RH (non-condensing)
Operating Atmospheric Pressure 540 mBar to 1060 mBar
Compliance
Masimo W1 Safety Standards Compliance
IEC60601-1 IEC 60601-1-2
EN ISO 80601-2-61 IEC 60601-1-11
Wireless Specifications
Communication (Bluetooth)
Type BLE
Frequency 2402-2480 MHz
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