Joy-iT MQ3 Analog Alcohol sensor on basis of Hydrogen concentration
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It is suitable for indoor usage.
The sensor can output exact values only after warmup phase.
Caution: sensor gets hot while usage!
Technical data:
Measurement range: 100 - 1000 ppm
Measureable substances: Ethan, Alcohol over the concentration of hydrogen
Application areas: F.i. breath alcohol tester, robotic, microcontroller projects
Compatible with: Raspberry Pi (with AD-converter), Arduino. etc.
Special features: High sensitivity which can be adjusted by potentiometer, quick reaction time, low sensivity to benzine
Analog Output: Values are processed by the microcontroller
Digital Output: thresholds can be set
Pins: VCC: Voltage supply 5V, GND: Ground, AOUT: Analog Output, DOUT: Digital Output
Response time: ≤ 1 s
Pick time after power on: ≤ 30 s
Heating current: ≤ 150 mA
Heating voltage: 5 ±0.2 V / 1,5 ±0.1 V
Heating energy power: 750 mW
