- ✔️ AZ-Delivery MQ135 Air Quality Gas Smoke Detection Sensor Modules for Arduino and Raspberry Pi are used in air quality control equipment for buildings/offices, and are suitable for detecting NH3, NOx, alcohol, Benzene, smoke, CO2 ,etc.
- ✔️ Resolution: 10~1000ppm // Sensitive resistance: 2KΩ to 20KΩ in 100ppm CO // Accuracy: ≥ 3% // Response time: ≤ 1s // Response time after power on: ≤ 30s // Heating current: ≤ 180mA // Heating voltage: 5.0V±0.2V / 1.5±0.1V // Input voltage: 5V // Heating energy output approx.: 350mW.
- ✔️ MQ135 Air Quality Gas Smoke Detection Sensor Module sensor is ready for connection to a microcontroller, e.g. an arduino board. For use with a Raspberry Pi, an AD converter is required.
- ✔️ Dimensions MQ135 Air Quality Gas Smoke Detection Sensor Module are approximately: 30 mm (length) x 20 mm (width).
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Description
The AZ-Delivery MQ-135 Air Quality Sensor as a ready-to-connect module for Arduino and Raspberry Pi
Easy-to-use sensor for measuring the concentration of various toxic gases such as benzene, alcohol, smoke and airborne contaminants. The MQ-135 measures a gas concentration of 10 to 1000ppm and is ideal for detecting a gas leak, as a gas alarm or for other robotics and microcontroller projects.
The SENSORS of the MQ series use a small heating element with an electronic-chemical sensor. They are sensitive to a wide range of gases and are suitable for use in rooms.
The sensor has a high sensitivity and fast response time, but takes a few minutes to output accurate readings, as the sensor has to heat up first. The measured valuesof the sensor are output as an analog value, which can be easily evaluated with a microcontroller.
This sensor is ready for connection for a microcontroller, such as an Arduino board. An AD converter is also required to be used with a Raspberry Pi.
Pinout:
- VCC - Power Supply 5V
- GND - Ground connection
- AOUT - Analog Output
- DOUT - Digital Output
To set the threshold, the module has a potentiometer. On the digital pin, the sensor only emanates a 0 or 1, depending on whether the set threshold is exceeded.
Caution:The sensor gets warm during operation!
Details:
- Resolution: 10x1000ppm
- Sensitive Resistance: 2K to 20K in 100ppm CO
- Accuracy: • 3%
- Response time: . . . . . . . . . . . .
- Response time after switching on: x 30s
- Heating current: 180mA
- Heating voltage: 5.0V-0.2V / 1.5-0.1V
- Input voltage: 5V
- Heating power approx.: 350mW
- Dimensions: approx. 30mm (length) * 20mm (width)
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