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5pcs lot mq 4 detector free gas mart methane natural

5pcs lot mq 4 natural gas detector methane gas detector methane

$32

5pcs lot mq 4 natural gas detector methane gas detector methane

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Product description

Size: 32mm X22mm X24mm Length*Width*High
The main chip:
LM393, MQ-4 gas sensor
Operating voltage: DC 5V
Features:
1, with signal output instructions;
2, dual signal output (analog output and TTL level output);
3, TTL output signal is low, can be directly connected to the microcontroller;
4, analog output 0 ~ 5V voltage, the higher the concentration the higher the voltage (non-linear output);
5. Good sensitivity to methane gas and natural gas;
6, has a long service life and reliable stability;
7, rapid response recovery characteristics;
application:
Suitable for home or factory methane gas, natural gas and other monitoring devices, can test natural gas, methane 300 to 10000ppm.

5pcs lot mq 4 natural gas detector methane gas detector methane

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