1 PC MH-Z1911A NDIR CO2 Module

[shortdesc] MH-Z1911A infrared CO2 sensor is intelligent sensor with small size, using non-dispersive infrared (NDIR) principle to detect the concentration of CO2 in the air of buildings such as office, home, classroom, airport installed in air quality meters, air purifier and HVAC system. MH-Z1911A is a newer version of MH-Z19B[/shortdesc] MH-Z1911A infrared CO2 sensor is intelligent sensor with small size, using non-dispersive infrared (NDIR) principle to detect the concentration of CO2 in the air of buildings such as office, home, classroom, airport installed in air quality meters, air purifier and HVAC system. It has excellent selectivity carbon dioxide, built-in temperature compensation for high accuracy, lower power consumption and optional output ways of UART and PWM. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design. Application HVAC system Air purifier Air quality monitor Consumer CO2 meter Smart home device Smart building automation Indoor environmental control Features High sensitivity, low power consumption Good stability and consistency Temperature compensation, excellent linear output Multiple output modes: UART, PWM Long lifespan Anti-water vapor interference, anti-poisoning Specifications Model No. MH-Z1911A Preheat time 1 min Detection Gas CO2 Response Time T90 <120s Working voltage DC 5.0±0.1V Working temperature -10 ~ 50 ℃ Average current <30mA (@5V power supply) Working humidity 0~95%RH(No condensation) Peak current 125mA (@5V power supply) Storage temperature -20~60 ℃ Interface level 3.3 V(Compatible with 5V) Weight 5 g Output signal Serial Port (UART)(TTL level 3.3V) Detection Range 400~10000ppm(optional,see table2.) PWM Lifespan >10 years   * The description and specifications might be changed without notice. Please contact us for the latest information before placing orders.