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Alcahol Ethanol sensor module for Arduino and other microcontroller projects
A sensitive ethanol sensor will detect levels of alcahol in the air. The level of alcohol varies the output voltage. A comparator gives a digital output. When the ethanol level reaches a certain level, this can be set with the built in potentiometer.
Please note: this sensor needs to run for 24-48 hours before first time use
Methane gas sensor module for Arduino and other microcontroller projects
This module has a sensitive methane sensor that will detect levels of methane in the air. The sensor outputs a varying voltageon the analogue pindepending on the level of methane and it has a comparator to give you a digital out at when the methane level reaches a certain level, this can be set with the built in potentiometer.
Please note, this sensor needs to warm up for 20 seconds before it will give a stable reading.
