Alcohol and ethanol sensor MQ-3 (OT2013-D53)

This analog gas sensor has a small heating element with an electronic-chemical sensor. It is suitable for use in buildings and can only give an accurate reading after the warm-up phase has been completed.Features- Arduino compatible- 100 - 10000 ppm Measuring range- high sensitivity (adjustable via potentiometer)- fast response time- Evaluation of the measured values from the microcontroller (analog)- Threshold value setting possible (digital)- < 1 s Response time- < 30 s Response time after switch-on- < 150 mA Heating current consumption- 5 V (+/- 0.2 V) Heating current voltage- 750 mW heating powerMeasurable substances- Ethanol- Alcohol via the hydrogen concentrationConnections- VCC: Power supply 5V- GND: Ground connection- AOUT: Analog output- DOUT: Digital outputDimensions- L x W x H: 32 x 21 x 20 mmCaution: The sensor becomes warm during operation!DimensionsLength: 3.2cmWidth: 2cmHeight: 1.56cm