The MQ3 Alcohol Ethanol Gas Sensor Module is designed for detecting alcohol (ethanol) vapors in the air. It utilizes a gas-sensitive semiconductor sensor that provides high sensitivity to ethanol with fast response and recovery times. This module is widely used in breathalyzer devices, safety applications, and industrial alcohol detection.Key Features:High sensitivity to alcohol (ethanol) vaporsFast response and recovery timeStable and long lifespanEasy to interface with microcontrollers and development boardsAnalog output signal for easy integrationLow power consumptionTechnical Specifications:Detection Range: 25ppm to 5000ppm EthanolSensitivity: ≥ 0.05mV/ppm (Ethanol)Heating Voltage: 5V ± 0.2V (AC or DC)Load Resistance: AdjustablePreheat Time: 24 hoursResponse Time: ≤ 10 secondsRecovery Time: ≤ 30 secondsOperating Temperature Range: -20°C to 50°COperating Humidity: ≤ 95% RHPower Consumption: ≤ 800mWDimensions: 32mm x 20mm x 22mmWeight: 5gApplications:Breathalyzers: Used in devices for detecting blood alcohol content.Safety Applications: Ensures safety in workplaces by monitoring alcohol vapor levels.Industrial Alcohol Detection: Applied in industrial settings to detect and monitor ethanol vapors.Smart Home Devices: Integrated into smart home safety systems for alcohol detection.Laboratory Testing: Used in laboratories for experiments involving alcohol detection.
