The MQ135 ( MQ - 135 ) Gas sensors are used in air quality control equipments and are suitable for detecting or measuring of NH3, NOx, Alcohol, Benzene, Smoke, CO2. The MQ-135 sensor module comes with a Digital Pin which makes this sensor operate even without a microcontroller and that comes in handy when you are only trying to detect one particular gas. If you need to measure the gases in PPM the analog pin needs to be used. The analog pin is TTL driven and works on 5V and so can be used with most common microcontrollers.
Specifications:
Processing Time
• Orders within Beirut: 1–3 business days.
• Orders outside Beirut: 3–5 business days.
• High-demand or custom items may require extra processing time.
• Once dispatched, you will receive an email confirmation with a tracking number.
Delivery Rates & Estimates
• Standard Delivery: 2–5 business days.
• Express Shipping: 2–3 business days (extra fee applies).
• Delivery times may vary due to customs, courier delays, or unforeseen events beyond our control.
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