Winsen MH-Z19E NDIR CO2 Sensor Module, 400-5000ppm, UART and PWM Output, 5V

Product Details: The MH-Z19E MH-Z19D 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 characteristics: 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 school Parameters: Product model: MH-Z19E Detection gas: carbon dioxide Power supply voltage: DC(5.0±0.1)V Average current: 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 Working temperature: -10℃～50℃ Storage temperature: -20℃～60℃ Working humidity: 0～95%RH (non-condensing)