Dual signal output (analog output, and TTL level output)
TTL output valid signal is low, can be connected directly to the microcontroller
0 ~ 5V analog output voltage, the higher the concentration the higher the voltage
Detectable Concentration: 0.04-4mg/L
Application: For motor vehicle drivers and other non-drinking workers on-site inspection, but also for other places of ethanol vapor detection, detection of alcohol range.