MQ-2 Smoke gas sensor
$2.991pcs
The ADIY MQ-2 is a gas sensor that detects combustible gases and smoke by measuring resistance changes in its sensing material when exposed to gases.
| Dimensions | 32 × 20 × 22 mm |
|---|---|
| Brand |
easyelecmodule |
5121 in stock
MQ-2 Smoke Gas Sensor
Description
The ADIY MQ2 Smoke gas sensor is an electronic sensor designed to detect the concentration of various gases in the air, including LPG, propane, methane, hydrogen, alcohol, smoke, and carbon monoxide. It operates as a chemiresistor, meaning that its gas detection mechanism is based on the change in resistance of the sensing material when it comes into contact with gas molecules.
The MQ2 is a metal-oxide semiconductor (MOS) type gas sensor. It measures gas concentration using a voltage divider network integrated within the sensor and operates at 5 V DC. It can detect gas concentrations in the range of 200 ppm to 10,000 ppm.
The sensing element consists of an aluminum-oxide-based ceramic substrate coated with tin dioxide (SnO₂), which is sensitive to combustible gases. This element is enclosed within a stainless-steel mesh to protect it from external contamination while allowing gases to diffuse through for accurate measurement.
MQ2 Smoke Sensor Module Features & Specifications
| FEATURES | DESCRIPTION |
|---|---|
| 5V Operation | Operates on 5V DC supply |
| LED Indicators | LEDs for output and power indication |
| Adjustable Sensitivity | Output sensitivity can be adjusted |
| Analog Output | 0V to 5V analog output range |
| Digital Output | 0V or 5V digital output |
| Low Cost | Economical and efficient design |
| Fast Response | Quick signal reaction time |
| Stable and Long Life | Reliable and durable operation |
| Dual Output | Supports both digital and analog outputs |
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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