Waveshare
Waveshare MQ-3 Gas Sensor
Waveshare MQ-3 Gas Sensor
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Shipping Guarantee
FREE SHIPPING on all UK orders. Fully Insured.
Handling time 1 - 3 working days. (Buy2fix has to process your order and put all your items through its strict quality-control tests.)
Transit time 5 - 10 working days.
Return Guarantee
Return Guarantee
For whatever reason if you are unsatisfied with your order within 7 days you can return it to us in new condition for a refund minus the shipping charges.
DOA Guarantee
DOA Guarantee
If your item arrives damaged, please contact us within 7 days and provide clear and valid proof. Buy2fix will make compensation based on the damage situation.
Missing/Wrong Items Guarantee
Missing/Wrong Items Guarantee
If you receive a parcel with missing/incorrect/secondary packing items, please contact us within 7 days of delivery and provide the relevant proof. Buy2fix will make compensation based on the damage situation.
1. Sensitive for alcohol, ethanol
2. Output voltage boosts along with the concentration of the measured gases increases
3. Fast response and recovery
4. Adjustable sensitivity
5. Signal output indicator
Specifications
1. Power: 2.5V ~ 5.0V
2. Dimension: 40.0mm * 21.0mm
3. Mounting holes size: 2.0mm
Applications
1. Car alcohol alarm
2. Breathalyser
How to Use
In the case of working with a MCU:
1. VCC: 2.5V ~ 5.0V
2. GND: Power supply ground
3. AOUT: MCU.IO (analog output)
4. DOUT: MCU.IO (digital output)
Package Contents
1. MQ-3 Gas Sensor x1
2. 4-pin custom connector jumper wire x1
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