Online O2 & pH Monitoring in Cell Culture

Cell Culture Flask with Integrated Oxygen and pH Sensor CFS-HP5-PSt3

This plastic cell culture flask with integrated sensors is available for different growth areas. It is delivered irradiated and pre-calibrated. The CFS-HP5-PSt3 can be read out with the SFR Shake Flask Reader or SFR vario in combination with the T-Flask Adapter.

  • Ready-to-use
  • Pre-calibrated sensors
  • Contactless measurement
  • For cell culture
Get a quote Place an order


Specifications Oxygen pH*
* provided Cell Culture Flasks are used without further handling in physiological solution
** at 100 rpm & in cell culture media
Measurement range 0 - 100 % O2 5.5 - 8.0 pH
Resolution ± 0.01 % O2 at 0.21 % O2 ± 0.01 pH at pH = 7**

± 0.4 % O2 at 20.9 % O2
± 0.05 % O2 at 0.2 % O2

± 0.1 pH at pH = 7 with one-point adjustment
± 0.2 pH at pH = 7 with pre-calibration
Drift < 0.01 % O2 per day
(sampling interval of 1 min.)
< 0.01 pH per day
(sampling interval of 1 min.)
Measurement temperature range from + 5 to + 50 °C
Response time (t90)** at 25 °C: < 60 sec.
Compatibility Aqueous solutions, ethanol (max. 10 % v/v), methanol (max. 10 % v/v), pH 2 - 10
Cross-sensitivity Typically no cross-sensitivity in culture media Reduced to ionic strength (salinity); a high concentration of small fluorescent molecules in the visible range can interfere
Calibration Sensor flasks are delivered irradiated.

Related products

SFR Shake Flask Reader for pH, O2 and OUR Monitoring in Shake Flasks, Cultivation Tubes and T-flasks

SFR Shake Flask Reader

The SFR Shake Flask Reader monitors pH, oxygen and OUR in up…

SFR vario online monitoring of pH, O2, OUR & biomass in shake flasks

SFR vario

The SFR vario offers online monitoring of oxygen, biomass…

T-Flask Holder for all sizes, to be mounted to the SFR and SFR vario

T-Flask Adapter for SFR or SFR vario

This adapter can be mounted to the SFR or SFR vario. It has…


Presens TV

Watch tutorials, webinars and informative videos about PreSens optical sensor systems.

All videos