915 Generation -3 MQ3 alcohol sensor module Breath Detector Ethanol Detecti

The main chip: LM393, -3 sensor Operating voltage: DC3-5V Response time:≤10s（70% Response） time:≤30s（70% Response） Heating resistance:31Ω±3Ω Heating Current:≤180mA Heating Voltage:5V±0.2V Heating Power:≤900mW detect Voltage:≤15V Temperature:-10℃ to 65℃, Humidity:≤95%RH& Storage conditions: Temperature:-20℃-70℃,Humidity:≤ 70%RH 1 x Module Signal output instructions; Dual signal output (analog output, and TTL level output); TTL output valid signal is low, can be connected directly to the minicontroller; 0 ~ 5V analog output voltage, the higher the concentration the higher the voltage; Has a high sensitivity and good selectivity to ethanol vapor; Has a and stability; Rapid response characteristics; Package included:1 X Ethanol Sensor Note:Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.