MG811 CO2 Carbon Dioxide Sensor

Size: 32mm X22mm X30mm
The main chip: LM393, carbon dioxide gas sensing probe
Working voltage: DC 6V

Features:
Has a signal output instructions
Dual signal output (analog output, and TTL-level output)
TTL output valid signal is low. (When output low signal light can be directly connected to the microcontroller)
Analog output (0 ~ 2V / 0-4V) voltage output selectable default hair 0-2V
Carbon dioxide has a high sensitivity and good selectivity;
Has a long life and reliable stability;
Quick response and resume;

Probe can plug design for easy testing.