Carbon dioxide is a key indicator of indoor air quality, damaging human cognitive ability and happiness. SCD41 is the next generation of micro carbon dioxide sensor of Sensirion. SCD41 has high precision and high-cost performance. The module leads out the power supply and communication pins with a 2.54mm spacing pin interface. On chip temperature and humidity compensation realizes humidity and temperature measurement through built-in temperature and humidity sensor. SCD41 can realize intelligent regulation of indoor ventilation system according to carbon dioxide concentration. Indoor air quality helps to maintain a healthy and efficient environment under low carbon dioxide concentration for a period of time.
Specifications
Reference accuracy, specified range 400-2000 ppm
Supply voltage range: 2.4 � 5.5 V
High accuracy: � (40 ppm + 5%)
Digital I2C interface
Integrated temperature and humidity sensor
Low power operation to < 0.4 Ma average @ 5 V, 1 meas/ 5 minutes
Interface definition:
1. GND: negative input port of power supply
2. VDD: positive input port of power supply
3. SCL: I2C clock port
4. SDA: I2C data port
Board size: 13.4 � 21.6mm