2 pcs MH-Z19C NDIR CO2 Module

[shortdesc]Application:Chamber is gold plated,High sensitivity, low power consumption,Good stability,Long lifespan Feature:High sensitivity, Low power consumption,Good stability,Temperature compensation, excellent linear output[/shortdesc] Production Description: MH-Z19C 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 Output method: UART, PWM &etc Long lifespan Anti-water vapor interference, no poisoning Application: HVAC refrigeration Air cleaner device Indoor air quality monitoring Smart home Ventilation system School Main technical parameters:  Model No. MH-Z19C 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) 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