9 ШТ./1 Лот Газоанализаторы Модуль Датчика MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135 Датчик Модуль Датчика Газа Starter Kit

VCC: positive (5 v)

GND: connect power negative

DO: TTL switch signal output

AO: analog signal output

Special remind: The sensor eed to preheat about 20s after the power supply, and the measured data of sensor will be stable.

The sensor fever belongs to the normal phenomenon,because its internal have heating wire, if too hot is not normal.

Packing inclued : total 9 pcs

MQ-2 MQ-3 MQ-4 MQ-5 MQ-6 MQ-7 MQ-8 MQ-9 MQ-135