The MH-Z19E carbon dioxide gas sensor (hereinafter
referred to as the sensor) is a general-purpose intelligent small sensor. It
has two products: pin and terminal. It uses the principle of non-dispersive
infrared (NDIR) to detect CO2 in the air and has good selectivity. ,No oxygen
dependence, long life, etc.; built-in temperature compensation; also has serial
port output, PWM output, easy to use. The sensor is a high-performance sensor
made by closely combining mature infrared absorption gas detection technology
with precise optical circuit design and sophisticated circuit design.
Sensor
specifications:
· High sensitivity, low power
consumption
· Excellent stability
· Temperature compensation, excellent
linear output
· Provide serial port (UART), PWM
waveform and other output methods
· long lasting
· Anti-water vapor interference, no
poisoning
Application:
· HVAC equipment
· Air quality monitoring equipment
· Fresh air system
· Air purification equipment
· Smart home
Parameters:
· Product model: MH-Z19E
· Detection gas: carbon dioxide
· Power supply voltage: DC(5.0±0.1)V
· Average current: <40mA (@5V power
supply)
· Peak current: 125 mA (@5V power
supply)
· Interface level: 3.3V (compatible
with 5V)
· Measuring range: 400~5000ppm
optional
· Output signal: serial port (UART)
(TTL level 3.3V); PWM
· Warm-up time: 1min
· Response time: T90 <120s
· Working temperature: -10℃～50℃
· Storage temperature: -20℃～60℃
· Working humidity: 0～95%RH (non-condensing)
Resources:
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