2 pcs Winsen MH-Z19E NDIR CO2 SENSOR

[shortdesc]Application:HVAC refrigeration,Air cleaner device,Indoor air quality monitoringFeature:High sensitivity,low power consumption,Good stability,Temperature compensation, excellent linear output[/shortdesc]Production Description:MH-Z19E NDIR infrared gas module is a common type, small size sensor, pins type or terminal type, using non-dispersive infrared (NDIR) principle to detect the existence of CO2 in the air, with good selectivity, non-oxygen dependent and long life. Built-in temperature compensation; and it has UART output and PWM output. It is developed by the tight integration of mature infrared absorbing gas detection technology, precision optical circuit design and superior circuit design.Feature: High sensitivity,low power consumption Good stability Temperature compensation, excellent linear output Multiple output modes: UART, PWM Long lifespan Anti-water vapor interference, anti-poisoning Application: HVAC refrigeration Air cleaner device Indoor air quality monitoring Smart home Ventilation system School Main technical parameters:    Model No. MH-Z19E Detection Gas CO2 Working voltage 5.0±0.1V DC Average current <40mA (@5V power supply) Peak current 125mA (@5V power supply) Interface level 3.3 V(Compatible with 5V) Detection Range 400~10000ppm(optional, see table2.) Output signal Serial Port (UART)(TTL level 3.3V) PWM Preheat time 1 min Response Time T90 <120s Working temperature -10 ~ 50℃ Working humidity 0 ~95% RH (No condensation) Storage temperature -20~60 ℃ Weight 5 g Lifespan >10 years