Philips Respironics Capnostat 5 Mainstream CO2 Sensor

Philips Respironics Capnostat 5 Mainstream CO2 Sensor

Philips | SKU
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Cutting edge CO2 technology for patients in the ICU, OR and EMS applications.

As a recognized global leader in mainstream capnography, Respironics has been providing innovative and cost effective solutions for over 20 years. The CAPNOSTAT sensor is the ideal capnography solution for your monitoring needs. Respironics provides comprehensive technical, clinical, and marketing support to help meet the growing requirements of your business.

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Philips Respironics Capnostat 5 Mainstream CO2 Sensor


  • Preferred choice for intubated patients
  • Rugged, solid state with no moving parts
  • Lightweight & compact design
  • Fast, accurate on airway measurement
  • No calibration required
  • Disposable & reusable airway adapters for all patients
  • Private label option

Integration made easy!

There is no need to take up valuable space inside your monitoring system because all of the electronics are located inside the CAPNOSTAT head. Only communication and power is essential to get you started.

Exclusive mask option

Measure ETCO2 and administer a wide range of oxygen concentrations to non-intubated patients.

Complete OEM solutions

The CAPNOSTAT sensor is just one of the many solutions we offer to our OEM customers. Respironics customizes innovative products along with providing comprehensive technical, clinical, and marketing support to help meet the growing needs of your business.


Transducer Type   

Mainstream CO2 Sensor

Principle of Operation 

Non-dispersive infrared (NDIR) single beam optics, dual wavelength, no moving parts



Initialization Time 

Capnogram, displayed in less than 15 seconds, at an ambient temperature of 25°C, full specifications within 2 minutes



CO2Measurement Range 

0 to 150 mmHg, 0 to 19.7%, 0 to 20 kPa 



Rise Time 

Less than 60 ms - Adult Reusable or Single Patient Use Airway Adapter 

Less than 60 ms - Infant Reusable or Single Patient Use Airway Adapter 



CO2 Resolution 

0.1 mmHg 

0 to 69 mmHg 

0.25 mmHg 

70 to 150 mmHg 



CO2 Accuracy 

0 - 40 mmHg 

± 2 mmHg 

41 - 70 mmHg 

±5% of reading 

71 - 100 mmHg 

±8% of reading 

101 - 150 mmHg 

±10% of reading  



CO2 Stability 

Short term drift: Drift over four hours shall not exceed 0.8 mmHg maximum 

Long term drift: Accuracy specification will be maintained over a 120-hour period 



CO2 Noise 

RMS noise of the sensor is less than or equal to 0.25 mmHg at 7.5% CO2



Sampling Frequency 

100 Hz 



Respiration Rate Range 

0 to 150 Breaths Per Minute (BPM) 



Respiration Rate Accuracy 

± breath 



Compensations (Supplied by Host) 

Barometric pressure: 400 mmHg to 850 mmHg 

Operator selectable O2,N2O, HE and agent compensation 




No routine user calibration required. An airway adapter zero is required when changing to a different style of airway adapter 



Airway Adapters 

Single patient use or reusable, < 5 cc deadspace (Adult), < 1 cc deadspace (Infant) Adapter taper meets ISO 5356-1 



Voltage Requirements 

5.0 VDC ±5% 



Power Rating 

Rated input: 1.1 Watts typical, steady state 

Up to 1.5 Watts maximum on power up (warm up) 




Standard — Lemo Redel 8-pin plastic 

LoFlo and CAPNOSTAT are interchangeable with the host monitor 

Common connector allows easy exchange between mainstream and sidestream monitoring 



Temperature and Humidity 

Operating: 0 to 45°C, 10 to 90% RH, non-condensing 

Storage: -40 to 70°C, <90% RH, non-condensing 



Water Resistance 

IPX4 – Splash-proof (sensor head only) 



Shock Impact 

IEC TR 60721-4-7 Class 7M3 (designed to withstand environments subject to significant vibrations or high shock levels) 

EN60068-2-6 sinusoidal vibration 

EN60068-2-27 shock 

EN60068-2-64 random vibration  

Able to withstand repeated 6-foot drops onto tiled floor while operating 



Data Interface 

RS232 compatible, bi-directional, 19200 baud, standard N-8-1 



Data Output 

CO2 gas concentration (mmHg), end-tidal CO2, inspired CO2, respiratory rate
Gas and barometric pressure compensated when supplied by host 




Designed to meet IEC 60601-1-2, EN55011 – CISPIR 11 Class B (Radiated and Conductive Emissions), IEC 61000-4-2 Electrostatic Discharge Immunity, IEC 61000-4-3 Radiated Immunity
Designed to comply with 93/42/EEC (MDD CE Marking), FDA Standards and ISO21647, Medical Electrical Equipment performance requirements for the basic safety and essential performance of respiratory gas monitors 




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