O2CPX – Cardiopulmonary Exercise Analyzer

The Model O2CPX is a table top analyzer used to monitor performance parameters during exercise testing. Breath-by-breath O2, CO2 and flow rate is measured precisely and accurately with internal sensors. Heart rate and pulse oximetry interfaces are compatible with Polar and Nonin accessories. Ambient temperature, humidity and barometric pressure is acquired for precise measurement correction. Our reliable solid state oxygen sensor does not require routine maintenance or factory calibration. Our O2CPX hardware easily collaborates with customer software solutions via USB interface.

Unit of Measure

Performance Conditions

Ambient Temperature (Operating)

N/A -10 to 50 ºC14 to 122 ºF


N/A 0 to 95%, non-condensing (at 40º C or lower)

Performance Specifications


N/A 0 to 10% CO2 (30% CO2 range is optional)


N/A 0.01 (0-10%)

Flow (Using Pump)

N/A 50 to 250 ml/min adjustable.

Response Time

N/A 150ms at 150 ml/min, filter setting 0 to 3.

Electrical Specifications

Voltage (DC)

N/A 12 V


N/A 1.5 A

External Power Supply

N/A 100 to 250 VAC

Mechanical Specifications

Dimensions (W x H x D)

N/A 7.5 x 3.0 x 11.0 in190 x 76 x 280 mm


N/A Instrument 5 lbs (2.3Kg), power module 1.5 lbs (0.7Kg)


Pneumotach Pressure Sensor

N/A At 1 liter/sec flow, RMS noise of ±0.003 l/s

Humidity Sensor

N/A 0-100% RH

Barometric Pressure

N/A Measures 500-1150 mbar