SEN-MQ3 Developer boards - gas sensor, alcohol (ethanol), MQ-3

This analog gas sensor has a small heating element with an electronic-chemical sensor. It is suitable for use in buildings and can only provide accurate readings once the warm-up phase is complete.

Features - compatible with Arduino - compatible with Raspberry Pi only in combination with art. no. RPI ADC (see accessories) - 100 - 10000 ppm Measuring range - high sensitivity (adjustable via potentiometer) - fast reaction time - Evaluation of the measured values from the microcontroller (analog) - Threshold value setting possible (digital) - - - - 5 V (+/- 0.2 V) Heating current voltage - 750 mW heating energy output

measurable substances - Ethanol - Alcohol via the hydrogen concentration

Connections - VCC: Power supply 5V - GND: Ground connection - AOUT: Analog output - DOUT: Digital output

Dimensions - L x W x H: 32 x 21 x 20 mm

Note Attention: The sensor gets warm during operation!