Senzor alcool etanol gaz MQ-3

For field testing of motor vehicle drivers and other non-drinking and operating personnel, but also for other places ethanol vapor detection

V. Application:

7, rapid response and recovery characteristics

6, has a long life and reliable stability

5 for ethanol vapor with high sensitivity and good selectivity.

4, 0 ~ 5V analog output voltage, the higher the concentration the higher the voltage.

3, TTL output valid signal is low. (Low-level signal when the output light can be directly connected to the microcontroller)

2, dual signal output (analog output, and TTL level output)

1, having a signal output instruction.

Four characteristics:

Third, the working voltage: DC 5 V

Second, the main chip: LM393, ZYMQ-3 gas sensors

One size: 32mm X22mm X27mm length X width X height