MH-Z19 MH-Z19B infrared CO2 Sensor Module Carbon Dioxide Gas Sensor for CO2 Monitor 0-5000ppm MH Z19B NDIR with Pin

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0-2000ppm ID:1776360
MH-Z19B carbon dioxide gas sensor (hereinafter referred to as the sensor) is a general-purpose smart small-scale sensor that uses non-dispersive infrared (NDIR) principle to detect the presence of CO2 in the air, with good selectivity and anaerobic Gas dependence, long life and other characteristics; built-in temperature compensation; at the same time with serial output, analog output and PWM output, easy to use. The sensor is a high-performance sensor that combines mature infrared absorption gas detection technology with precise optical path design and sophisticated circuit design.
Parameters
Product model number:MH-Z19B
Gas Detection:Carbon Dioxide
Supply voltage:4.5~5.5V DC
Average current
Peak current:150 mA (@5V supply)
Interface level:3.3V (5V compatible)
Measurement range:0~5000ppm can be selected within the range
Warm-up time:3min
Response time:90
Working temperature:0∥50C
Operating Humidity:0 to 95% RH (non-condensing)
Characteristics
Gas chamber with gold plating, waterproof and corrosion resistant
High sensitivity, low power consumption
Excellent stability
Temperature compensation, excellent linear output
Provides serial (UART), analog (DAC), PWM waveform output methods
long lasting
Water vapor interference, not poisoning
Application
HVAC refrigeration equipment
Air quality monitoring equipment
Fresh air system
Air purification equipment
Smart home
SCHOOL
Vin:Power Positive (Vin)
GND:Negative Power Supply (GND)
Vo:Analog output
PWM:PWM
HD:HD (zero for school, low for more than 7 seconds)
Rx:UART(RXD) TTL Level Data Input
Tx:UART (TXD) TTL level data output
Pin 1:Analog Output Vo
Pin 2:None
Pin 3:Negative Power Supply (GND)
Pin 4:Positive Power Supply (Vin)
Pin 5:UART(RXD) TTL Level Data Input
Pin 6:UART (TXD) TTL Level Data Output
Pin 7:None
Package included
1 x MH-Z19B 0-5000ppm Infrared CO2 Sensor
1 x Pin