MQ-3 Alcohol Ethanol Sensor for Arduino
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Size: 32mm X22mm X22mm length * width * height
The main chip: LM393, MQ-3 gas sensor
Operating voltage: DC3-5V
Features :
1. Signal output instructions;
2. Dual signal output (analog output, and TTL level output);
3. TTL output valid signal is low, can be connected directly to the microcontroller;
4. 0 ~ 5V analog output voltage, the higher the concentration the higher the voltage;
5. Has a high sensitivity and good selectivity to ethanol vapor;
6. Has a long life and reliable stability;
7. Rapid response recovery characteristics;
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