The EE891 CO2 sensor module was developed specifically for large-volume
production and for OEM applications. The CO2 sensor used is based on infrared technology (NDIR) and is maintenance-free
thanks to the patented E+E auto-calibration process. The auto-calibration is based on an internal reference and compensates
for any ageing effects of the CO2 sensor, and excellent long-term stability is guaranteed. A change in background
concentrations is not necessary for the sensor module to maintain calibration.
The digital interface of the CO2 sensor module and the minimal-sized design permit very easy integration into devices, e.g.
for demand controlled ventilation or data loggers. Communication to the device utilizes the E2 interface that is similar to I2C.
The adjustable measurement interval allows the average power consumption to be reduced to less than 60µA ideal for battery-powered
devices. The high level of measurement accuracy and the extensive measurement range up to 10000ppm means that the CO2 sensor
module can be used for a very wide range of applications.