Sensirion SGP40-D-R4, Hydrogen Air Quality Sensor

The Sensirion SGP40 indoor air quality sensor is a digital gas sensor designed for easy integration into air purifier s or demand controlled ventilation systems. The CMOSens technology offers a complete , easy to use sensor system on a single chip featuring a digital I^2C interface and a temperature controlled d micro hotplate, providing a humidity compensated VOC based indoor air quality signal. In this sensor the output signal can be directly processed by Sensirion’s powerful VOC Algorithm to translate the raw signal into a VOC Index as a robust measure for indoor air quality.

MOx based gas sensor for indoor air quality applications
Outstanding long-term stability and lifetime
I^2C interface with digital output signal
Very small 6-pin DFN package: 2.44 x 2.44 x 0.85mm^3
Low power consumption is 2.6mA at 3.3V
Tape and reel packaged, reflow solderable
On-chip humidity compensation

Datasheet - SGP40-D-R4