MQ-135 Air Quality Sensor
The MQ-135 is a reliable air quality gas sensor module designed to monitor indoor air pollution. It can detect harmful gases such as Ammonia (NH3), Nitrogen
Key Features:
Detects multiple harmful gases
Analog Output: 0V – 5V (gas concentration level)
Digital Output: 0V or 5V (TTL logic, adjustable threshold)
Compatible with Arduino, Raspberry Pi, ESP32, ESP8266
Requires pre-heating for stable readings
Operating Voltage: 5V
Applications:
Indoor air quality monitoring
Gas & pollution alarms
Environmental monitoring systems
IoT & smart home projects
DIY electronics experiments
Delivery: all over Ethiopia
Whole Ethiopia coverage
Contact for price: 19
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