MQ-3 Alcohol Ethanol Sensor Module Gas Detector Sensor Module for arduino

Description:

Dual-way Signal Output: Analog output and TTL level output 
High sensitivity to LPG, gas, alcohol, hydrogen and more 
Fast response and recovery 
Good steadiness and long service life 
Great for home or factory gas leakage detection 
Use for Detecting: Combustible gas such as LPG, butane, methane, alcohol, propane, hydrogen, smoke, etc 
Detecting Range: 300 to 10000ppm 
Working Voltage: 5V DC 

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5. 1 Year Factory Warranty
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FAQ:

1. What is the delivery time?

Normally, 1-5 workdays after payment;

Special requirement orders, delivery time is negotiable.

2.If the products can’t work after receiving it,what should I do?

We will replace new items for you at once, and respect your final decision for wrong goods.

3.If the products don’t meet my demand after I received it,can I return it?

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You can return back to us, we will refund your full payment.