Waveshare
Waveshare MQ-135 Gas Sensor Module For Air Quality Monitoring - RS8526
Waveshare MQ-135 Gas Sensor Module For Air Quality Monitoring - RS8526
SKU:RS8526
In stock
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Delivery Time
Delivery Time
- Delivery time with the Express Shipping option is 2-3 working days, and with the Standard Shipping option is 5-6 working days. It varies based on location, reliant on courier services.
- Delivery time if the order item is on Preorder Status is 15-20 working days.
COD (Cash on Delivery)
COD (Cash on Delivery)
- For COD you have to pay extra charges of Rs 350/- before the shipment. (We will share the company QR Code, UPI ID or Account details for the same)
Description:
This module, built around the MQ-135 gas sensor, is specifically designed for air quality applications. It can accurately measure benzene, alcohol, and smoke, generating digital signals to trigger air treatment devices. Widely used in both consumer and industrial air quality monitors, this sensor is also effective at detecting ammonia, sulfide, and other harmful gases, while importantly avoiding interference from LPG, natural gas, or coal gas.
The MQ-135 utilizes SnO2 as its gas-sensing material, which exhibits lower conductivity in clean air. As the concentration of polluting gases increases, the sensor's conductivity rises proportionally, allowing for precise measurement. You can easily adjust the sensitivity using its built-in potentiometer. Integrate it with a simple circuit to convert conductivity changes into a corresponding gas concentration output.
Specifications;
- Operating Voltage: 2.5 to 5V
- Mounting holes size: 2.0mm
- Detecting Range: Alcohol:10~300ppm, Benzene:10~1000ppm, NH3:10~300ppm
Features:
- Multi-Gas Detection: Accurately senses benzene, alcohol, and smoke.
- Concentration-Based Output: Output voltage rises with increasing gas concentration.
- Rapid Response: Delivers fast response and recovery times.
- Adjustable Sensitivity: Easily fine-tune detection levels.
- Visual Signal Indicator: Built-in LED for signal output status.
Applications
- Air quality monitor
How to Use
In the case of working with a MCU:
- VCC ↔ 2.5V ~ 5.0V
- GND ↔ power supply ground
- AOUT ↔ MCU.IO (analog output)
- DOUT ↔ MCU.IO (digital output)
Useful Link:
Waveshare MQ-135 Gas Sensor Module
Package Included:
- 1 x Waveshare MQ-135 Gas Sensor Module
- 1 x 4-Pin Custom Connector Jumper Wire