Model 3231 USB Specifications

Oxygen Saturation Display Range: 0% to 100% SpO2
Pulse Rate Display Range: 18 to 321 beats per minute (BPM)
Declared Accuracy*: The table below shows A_rms values measured using the Model 3231 in a clinical study.

This graph shows plots of the error (SpO2 – SaO2) by SaO2 using the 3231 with a linear regression fit and upper 95% and lower 95% limits of agreement. Each sample data point is identified by subject from a clinical study in non-motion conditions.

Pulse Rate Declared Accuracy Range (A_rms)*: 20 to 250 BPM ±3 digits
Low Perfusion Pulse Rate Declared Accuracy Range (A_rms)*: 40 to 240 BPM ±3 digits
Measurement Wavelengths and Output Power**:
Red. 660 nanometers @ 0.8 mW max. average
Infrared. 910 nanometers @ 1.2 mW max. average

Temperature:
Operating. -5 °C to 40 °C / 23 °F to 104 °F
Storage/Transportation. -40 °C to 70 °C / -40 °F to 158 °F
Device temperature will not exceed 41 °C as measured during a controlled
environment test.

Humidity:
Operating. 10% to 95% non-condensing
Storage/Transportation. 10% to 95% non-condensing

Altitude:
Operating. Up to 5,000 meters / 16,404 feet
Hyperbaric Pressure. Up to 4 atmospheres

Weight: < 72 g / 2.5 oz., including cable and connector

Classifications per IEC 60601-1 / CAN/CSA-C22.2 No. 601.1/ UL 60601-1:
Degree of Protection: Type BF-Applied Part
Enclosure Degree of Ingress Protection: IP32
Mode of Operation: Continuous

* ±1 A_rms represents approximately 68% of measurements.
** This information is especially useful for clinicians performing photodynamic therapy.

This product complies with ISO 10993-1, Biological evaluation of medical devices – Part 1: Evaluation and testing.
This device is not made with natural rubber latex.
This product complies with RoHS.
This product complies with REACH.