توضیحات

Description:

The MQ5 Gas Sensor module is useful for gas leakage detecting. It can detect LPG (Liquefied petroleum gas), i-butane, methane, alcohol, Hydrogen and smoke. The sensitivity can be adjusted using the on-board potentiometer, this sensor can be used by reading the analog pin to which it is connected. Please use this sensor only in controlled experiments, Combustible gases and fumes are very dangerous.

Features:

• Main chip: LM393, MQ-5 gas sensor.
• Operating voltage: DC 3-5V.
• Dual signal output (analog output, and TTL level output).
• TTL output valid signal is low level, can be connected to microcontroller directly.
• 0 ~ 5V analog output voltage, higher concentration means higher voltage.
• High sensitivity and good selectivity for CO.
• Long service life and reliable stability.
• Rapid response and recovery characteristics.
• Size: 35 x 20 x 21mm/ 1.4″ x 0.79″ x 0.83″ (L*W*H).
• Detection Zone:300 to 10000ppmm.
• Sensitive Resistance:1KΩ to 20KΩ in 2000ppm Isobutane.
• Response Time: ≤10s.
• Recovery Time: ≤30s.
• Heating Resistance: 31Ω±3Ω.
• Heating Current: ≤180mA.
• Heating Voltage: 5.0V±0.2V.
• Heating Power: ≤900mW.
• Measuring Voltage: ≤24V.
• Ambient Temperature：-20℃～+55℃.
• Humidity: ≤95%RH.
• Environment oxygen content: 21%.
• Storage Condition: Temperature: -20℃ to +70℃, Humidity: ≤70%RH.