COMBUSTIBLE GAS SENSOR MODULE

CAT# MQ-135
$6.75 each
Quantity:  
 
Useful for gas leakage detection. High sensitivity to LPG, Propane and Hydrogen, also could be used to Methane and other combustible gasses. Uses the MQ135 gas sensor along with an LM393 dual differential comparator. Analog and digital outputs. TTL output signal can be connected directly to a microcontroller IO port or connect to a relay module, potentiometer is used to adjust the output level transition threshold.

Specifications
· Model: FC-22
· Operating voltage: DC 5V
· Analog Output (AO): 0~5V analog output voltage
· Digital Outout (DO): 0V or 5V output
· Configuration: Through Potentiometer (adjusts the output level transition)
· Preheat Duration: 20 seconds
· 1.25" x 0.80" x 0.85"

Pinout
1. VCC (+5V)
2. GND (0V)
3. DO (Digital Out)
4. AO (Analog Out)
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