LifeSense® II Specifications

Pulse Oximeter Specifications

Oxygen Saturation Display Range: 0 to 100 % SpO2
Pulse Rate Display Range: 18 to 321 beats per minute (BPM)
Measurement Wavelengths*:
Infrared: 660 nanometers @ 0.8 mW max. average
Red: 910 nanometers @ 1.2 mW max. average

Accuracy – Sensors: Declared accuracy data for compatible sensors can be found in Nonin’s Sensor Accuracy document.

*This information is especially useful for clinicians performing photodynamic therapy.

Capnography Specifications

Respiration Range: 0 to 99 respirations/minute
Respiration Accuracy:
3 to 50 respirations/min ± 2
51 to 60 respirations/min ± 3

Test method summary: To determine the rated respiration rate, calibrated CO2 gas tanks are used as the respiration rate is changed from 3 to 60 BrPM.

EtCO2/CO2 Range: 0 to 99 mmHg (0 to 13.2 kPa)
EtCO2/CO2 Accuracy1, 2:
±0.2 kPa / ±2 mmHg, +8% of reading3
540 – 795 mmHg (720 – 1060 hPA)
(EtCO2/CO2 reading reaches its steady state accuracy within 10 minutes after power up. From maximum storage temperature, monitor reaches steady state accuracy 19 minutes after power up.)

Calculated Update Frequency: Once every breath (“NO BREATH” alarm after 30 seconds)
Sampling Rate: 4 Hz (4 times per second)
Total System Response Time: <7 seconds (includes delay time and rise time)
Drift of Measurement: Within CO2 accuracy specifications for 6 hours of continuous monitoring
Measurement: Automatic barometric pressure compensation and CO2 temperature compensation

1 There is no known adverse effect on performance due to cyclical pressure up to 10 kPa.
2 There is no degradation in EtCO2 measurement accuracy as a function of BrPM and inspiratory/expiratory (I/E) time ratio.
3 Presented concentration of CO2 and EtCO2 can be false, indicating a high presence of nitrous oxide and other interfering gases.

The table below shows the CO2 and EtCO2 concentration corrections. Only use agents listed in the table below.

Agent Concentration Correction of Presented CO2 to Real Concentration
50 – 70% N2O Presented CO2 x 0.75 = Actual CO2
30 – 50% N2O Presented CO2 x 0.85 = Actual CO2
0 – 30% N2O No correction

System Specifications

Power Requirements:
Power Supply: 100 – 240 VAC 50 – 60 Hz
Power Consumption: 3.6 W with battery operation
Input: 9 W with power supply
12 VDC, 1.5 A

Internal Battery:
Type: Lithium Ion (Li-Ion) internal battery, non-field replaceable, rechargeable
Battery Capacity: Approximately 5 hours
Charging Time: Approximately 9 hours

Dimensions: 200 x 135 x 50 mm (7.9 x 5.3 x 2 in.)
Weight: 865 grams (1.9 pounds)
Memory: 36 hours (assuming continuous operation)
Operating: 0 to 40 °C (32 to 104 °F)
Storage/Transportation: -40 to 70 °C (-40 to 158 °F)
Time (from storage) for monitor to be ready for its intended use:
10 minutes to warm from -40 to 0 °C
19 minutes to cool from 70 to 40 °C

Applied part temperature will not exceed 41°C as measured during a controlled environment test.

Operating: 15% to 93% noncondensing
Storage/Transportation: Up to 93% noncondensing

Operating: Up to 2,740 meters (9,000 feet)
Atmospheric Pressure: 540 to 795 mmHg (720 to 1060 hPa)

Pump Flow: 75 ml/min (minimum sample flow rate: 60 ml/min)
Flow Accuracy: ±15 ml/min

High and Medium Priority Alarms (at 1 m):
Sound Pressure Level: 74.6 to 75.5 dB

Classification per ANSI/AAMI ES60601-1 and CAN/CSA-C22.2 No. 60601-1:
Type of Protection: Internally powered class II (with power supply)
Degree of Protection: Type BF-Applied Part
Mode of Operation: Continuous
Enclosure Degree of Ingress Protection: IP22