Description
One MQ-135 air quality gas sensor module. It responds to ammonia, benzene, alcohol vapor, and smoke by varying its internal resistance, so the analog output tracks concentration changes and the digital output switches when a preset threshold is passed. A short preheating period is recommended before stable measurement.
This listing is for one single module. Quantity 1.
- Sensor: MQ-135 semiconductor sensing element
- Detects: ammonia, benzene, alcohol vapor, and smoke
- Outputs: analog output and digital threshold output
- Operating voltage: 5V DC, with a built-in heating element
- Preheating recommended before stable measurement
- Threshold adjustable with the onboard potentiometer
- Pins: VCC, GND, AO, DO, clearly labeled
In the box: 1 MQ-135 air quality gas sensor module.
Shipped fast and securely from our secure facility in New York, providing fast, high quality USA shipping.
See also: Robot Sensors · ELEGOO UNO R3 Microcontroller Board, ATmega328P + ATmega16U2, with USB Cable · Nano V3.0 Development Board, ATmega328P, CH340G, USB-C, Single · ESP32 DevKit V1 Development Board, 30-Pin WROOM-32, WiFi + Bluetooth · How to Choose Sensor Modules for Your Arduino Projects
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