Waveshare MQ-2 Gas Sensor

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SKU: rz24314530 Category: Gas and Dust Sensor

Description

The sensor detects the concentration of LPG, propane and hydrogen in the air, the result can be obtained by measuring the voltage on the analog output. The system is powered with a voltage from 2.5 V to 5 V. It has a digital and analog output, making it compatible with most of the commissioning modules, including Raspberry PiandArduino.

Operating principle:
MQ-2 gas sensor applies SnO2 which has a lower conductivity in the clear air as a gas-sensing material. In an atmosphere where there may be inflammable gases, the conductivity of the gas sensor raises along with the inflammable gas concentration increases. MQ-2 performs a good detection to different inflammable gases such as natural gas, especially sensitive to liquefied gas, propane and hydrogen. Its ability to detect various inflammable gases and lower cost make it an ideal choice of different applications of gas detection.

Features:

Sensitive for LPG, propane, hydrogen
Output voltage boosts along with the concentration of the measured gases increases
Fast response and recovery
Features boost circuit
Adjustable sensitivity
Signal output indicator

Package Includes:

1 x MQ-2 Gas Sensor
1 x 4-pin custom connector jumper wire

Additional information

Voltage (V)	2.5 V to 5 V
output Pin	Analog and digital
pin	Gold pin connectors , 2.54 mm pitch
Board Size	40 x 21 mm
Mounting Hole Diameter (mm)	2 mm
Interface	Analog output , Digital Output , GND , VCC Positive power supply (2.5V-5.0V)
Weight (g)	8

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Shipping & Delivery

Shipping and Delivery Policy

1. Shipping Process:

Orders are processed within 1-2 business days after payment confirmation.
Delivery time varies based on location and selected shipping method, typically ranging between 3-7 business days.
We partner with trusted courier services to ensure timely and safe delivery.

2. Shipping Charges:

Shipping charges are calculated at checkout based on the delivery location and package weight.
Free shipping may be available for orders above a specified amount, as mentioned on our website.

3. Order Tracking:

Once your order is shipped, you will receive a tracking ID via email or SMS to monitor the shipment status.

4. Delivery Address:

Please provide a complete and accurate delivery address to avoid delays.
We are not responsible for delivery failures due to incorrect or incomplete address details provided by the customer.

5. Delivery Issues:

If a package is delayed, lost, or damaged during transit, please contact our support team immediately.
Claims for lost or damaged items must be reported within 48 hours of delivery.

6. No Return Policy for Opened/Soldered Products:

We do not accept returns for products that have been opened, used, or soldered.
Ensure you verify product compatibility before purchase, as returns will only be accepted for unopened and unused items in their original packaging.

7. Refund Policy:

Refunds will be issued only for canceled orders before shipment or wrong/damaged items received (subject to investigation).
No refunds or replacements for products that have been tampered with, soldered, or physically damaged by the customer.

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