What is it?

The EE893 is a optical CO2 sensor that operate on the dual wavelength NDIR principle, which stands for outstanding long term stability even in demanding environment. It is easily accessible for makers thourgh I2C bus (with slow settings).

Why did you make it?

Unfortuntely we did not make this ourselves, so why do we offer it? Because we soon will offer here a breakout board for the EE893 and as well an environmental sensor shield (for Arduino Uno and derivates) that optionally can have a EE893.

What makes it special?

A multiple point CO2 and temperature adjustment procedure leads to excellent CO2 measurement accuracy over the entire temperature working range.

as of the low power consumption, miniature size and simple electrical connectionvEE893 are the optimal modules for battery operated devices. They can be configured and adjusted by the user to match usual maker requirements.

Key Features

• Dual wavelength NDIR CO2 working principle
• Measuring range up to 2,000ppm ±(50ppm +2% of measurment value)
• Auto-calibration for excellent long term stability
• Temperature compensation
• Very low temperature dependency
• High insensitivity to pollution
• Very low current consumption down to 60 μA
• Digital output (I2C with low speed)
• Miniature size

Typical Applications

• air quality sensors
• handhelds CO2 sensors
• building automation
• home breweries etc.

Further information

supply is 4.75-7.5V DC.

Country of origin Austria (AT) Manufacturer E+E Elektronik Gross weight (incl. package) 300g Dimensions (incl. package) 46x22x12mm

datasheet

Getting Started

The module requires 5V and communicates using I2C.

Connect the module according the following picture.

Use the code on the refered github page as starting point. Contact us in case of an issue or leave a comment.