1 SMART AND COMPACT: This is a universal smart small sensor that uses the principle of non dispersive infrared (NDIR) to detect the presence of CO2 in the air 2 2 OUTPUT MODES: Built in temperature compensation, with serial output and PWM output at the same time, easy to use 3 GOOD PERFORMANCE: The sensor is a high performance sensor that closely combines mature infrared absorption gas detection technology with accurate optical path design and accurate circuit design 4 STABLE AND DURABLE: Carbon dioxide gas sensor module have excellent stability and long service life, you can use with confidence 5 EXCELLENT PERFORMANCE: Made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability
What's in the box
1 x CO2 Sensor Module