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The alcohol sensor is a complete module fully compatible with Arduino. The module is based on the MQ303A semiconductor sensor. It is characterized by high sensitivity to alcohol and quick reaction to its presence. You can build your own breathalyser with it.
Grove - MQ303A - Alcohol sensor - analog - semiconductor €16.35
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Module with reflective sensor basing on the transmitting LED and phototransistor operating in the infrared range. The sensor is powered with the 5V voltage. The output is an analog voltage.
Reflectance sensorQTR-L-1A - analog (2 pcs) - Pololu 2454 €8.80

CNY70 reflective optocoupler sensor

€1.44

Reflective optocoupler used, for example, to distinguish the edges or for line detection. Case dimensions – 7 x 7 x 6 mm,through hole installation.

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Product code

UCC-00052
Ean

5904422369774
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