SPECIFICATIONS

MH-Z19 Carbon dioxide gas sensor (hereinafter referred to as the sensor) a general purpose, small sensor, using non-dispersive infrared (NDIR) principle to detect the presence of C0z in the air, with good selectivity, no oxygen dependence, long life. Built-in temperature compensation; Digital output and waveform output at the same time, easy to use. The sensor combines mature infrared absorption gas detection technology with precise optical path design and sophisticated circuit design to produce high performance sensor
Product model: MH-Z19B
Life span: >5 years
Interface level: 3.3V
Preheating time: 3min
Average current: <18mA
Detected gas: Carbon dioxide
Operating voltage: 3.6~5.5VDC
Sensor features: Provide LART, PWM waveform and other output modes long service life, excellent stability, anti-water vapor interference, no poisoning, temperature compensation, excellent linear output high sensitivity, high frequency, low power consumption
Response time: T90<60s
Operating temperature: 0~50℃
Output signal: UART PWM
Working humidity: 0~95%RH(non-condensing)
Overall dimensions: 33mmX20mmX9mm
Measurement range: 0 to 0.5%Vol This parameter is optional
Main applications: Can be widely used in HVAC refrigeration and indoor air refrigeration monitoring.