MQ135 Бытовые прочный Датчик качества воздуха модуль опасные газы обнаружения Портативный окружающую среду для Arduino практичное устройство

Description:
Fully compatible for Arduino, and its connection port is compatible for Arduino sensor extension board.
When the polluted gas exists in the environment of the sensor, the conductivity of the sensor increases with the concentration of polluted gas in the air.
This sensor is highly sensitive to ammonia, sulfide, and benzene, and is great for the monitoring of smoke and other harmful gases.
This sensor can detect a variety of harmful gases, is a suitable for a variety of applications and a kind of low-cost sensor.
It can be applied to household and environmental hazardous gas detection devices.
The sensor is equipped with 4 positioning holes, allowing you to fix the sensor on other devices.
Specification:
Material: Electronic component
Color: Red
Size: About 45x26x19mm
Working voltage: 3.3-5V DC
Interface: 4PIN interface
Output signal: digital signal and analog signal
Package includes:
1pc x Air Quality Sensor
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 1-2 cm differences due to manual measurement.