- Description
Main chip: LM393,MQ-135 gas sensor
With high sensitivity and good selectivity for air quality, harmful gas detection.
With the DO switch signal (TTL) output and AO analog signal output
Useing of high-quality double-panel design, with power instructions and TTL signal output instructions
TTL output valid signal is low. (When the output low signal light, can be directly connected to the microcontroller or relay module)
With high sensitivity and good selectivity for air quality, harmful gas detection.
With the DO switch signal (TTL) output and AO analog signal output
Useing of high-quality double-panel design, with power instructions and TTL signal output instructions
TTL output valid signal is low. (When the output low signal light, can be directly connected to the microcontroller or relay module)
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