The EE894 module is ideal for demand controlled ventilation and building automation. It incorporates the E+E dual wavelength NDIR CO2 sensor,which compensates for ageing effects, is highly insensitive to pollution and offers outstanding long term stability. Beside CO2, the module measures also relative humidity (RH), temperature (T) and ambient pressure (p).

A multiple point CO2 and T factory adjustment procedure leads to excellent CO2 measurement accuracy over the entire T working range. The pressure compensation minimizes the impact of altitude and ambient pressure variations onto the CO2 measured data.

The measured data, with a range of up to 1% CO2, is available on the I²C or the E2 digital interface. The EE894 is available in two sizes and with electrical connection via contact pins and pads, which facilitate the design-in.

An optional kit for the E2 interface facilitates easy configuration of the module and the adjustment of the CO2, RH, T and pmeasurement. The CO2 measurement interval can be set according to the application requirements; by this the average current consumption can be reduced to 420 μA, ideal for battery-operated devices.Typical Applications：Demand controlled ventilationBuilding automationData loggers and hand heldsWireless transmittersKey features：AutocalibrationOutstanding long-term stabilityTemperature and pressure compensatedLow power consumptionSmall size

EE894二氧化碳传感器是按需控制通风和楼宇自动化的理想选择。它选择了E+E双光波长NDIR CO2感知器，可赔赏氧化效用，对感染髙度不强烈，并可以提供突出的不断维持性。不仅二氧化的碳，该模快还检测取决于干湿度（RH）、高温（T）和条件阻力（p）。

找色CO2和T厂子调低程序流程可在另一T工做领域内构建出众的CO2测试精密度较。重压拆迁补偿将气温和室内环境重压变化无常对CO2侧量数据显示的影晌降落到较低。

可在I²C或E2数字1音频接口上刷出衡量数据信息，其范围之内多达1%CO2。EE894有2种长宽比可供选，并可以通过触针和焊盘做电器完成连接，这益于在中做设计方案。

E2界面的可供选择套件这样有利于随意性能包块和改变CO2、RH、T和P测定。CO2检测的相隔可按照其适用想要安装；这些，评均工作电流使用量都可以减轻到420μA，如此好电瓶驱动安装设施设备。

类型应用：

按需把握室内通风

楼房定时化

资料记下器和手拿机器

远程试射机

EE894二氧化碳传感器主要特点：

半自动校正

专注的长期稳定性

湿度和负荷补偿金

低能耗

小厚度