MG811 CO2 Carbondioxide sensor module

Carbon dioxide detection sensor module (with analog signal output, TTL level signal, temperature compensation output),
Working voltage: DC 6V
Features:
1, with a signal output indication;
2, dual signal output (analog output and TTL level output);
3. The TTL output valid signal is low. (When the output is low, the signal light is on, it can be directly connected to the microcontroller)
4, analog output 0-2V;
5. High sensitivity and good selectivity to carbon dioxide;