Note! This product is suitable for prototyping and experimentation. Not for critical applications.

The module contains a MQ-3 Gas Sensor and ETA1036. High sensitivity to alcohol and small sensitivity to benzine with a stable and long worklife are most important reasons to choose the MQ-3. The ETA1036 is a high efficiency synchronous step-up converter that can provide up to 3W of power to a boosted output from a low voltage source. The start-up voltage requires only 0.85v and the efficiency up to 96%. The MQ-3 is useful for alcohol detecting. There are different gas detectors for sale, like MQ2, MQ5 and MQ9. Below is a contrast table of them.

Features

• Work Voltage: 3.3V ~ 5V
• High sensitivity to Combustible gas in wide range
• Stable performance, long life, low cost
• Simple drive circuit
• Wide detection range
• Dimensions(mm):40.0(L)x20.0(W)x21.5(H)

Parts list

• Gas sensor x 1
• MQ3 x 1

Useful links

• MQ3 Datasheet
• Wiki link