Product Overview
The MQ-3 sensor module is designed for detecting ethanol in breath for Arduino applications. It's based on the LM393 chip with the MQ-3 gas sensor.
Specifications
- Operating Voltage: DC 3-5V
- Response Time: 10 seconds (70% response)
- Recovery Time: 30 seconds (70% response)
- Heating Resistance: 31Ω ± 3Ω
- Heating Current: 180mA
- Heating Voltage: 5V ± 0.2V
- Heating Power: 900mW
- Detection Voltage: 15V
- Operating Temperature: -10°C to 65°C
- Humidity: Up to 95% RH
- Storage Conditions: -20°C to 70°C, Humidity up to 70% RH
Features
- Dual signal output: analog and TTL level
- TTL output signal is low, suitable for direct connection to microcontrollers
- 0-5V analog output voltage range, correlating with ethanol concentration
- High sensitivity and selectivity to ethanol vapor
- Long life and reliable stability
- Rapid response and recovery characteristics
Included in the Package
- 1 x Ethanol Sensor Module
Images
