The Go Direct® Ethanol Vapor, order code GDX-ETOH, $149 and Ethanol Sensor, order code ETH-BTA, $119 are gas sensors that detect ethanol vapor. The sensors needs to be placed above a liquid sample. The use of Tape for Ethanol Sensor, order code ETH-TAPE, $3 (one roll is included with purchase of the sensor) will protect the sensing element if it accidentally splashed or briefly submerged in the sample during data-collection.
Submerging the sensor in liquid will not give accurate results and will damage the sensor. Please note that using the sensor in a liquid falls outside normal use. Any damage to the sensor will not be covered under warranty.