MQ-3 MQ3 alcohol sensor, alcohol sensor, alcohol gas sensor

Specification

Gas alcohol (ethanol)

Alcohol detection range 10 ~ 1000ppm

Characteristics of gas 125ppm alcohol

Sensitivity R in air / Rin typical gas ≥ 5

Sensing Resistance 1 ~ 20KΩ in air atmosphere

Response time ≤ 10s (70% Response)

Recovery time ≤ 30s (70% Response)

Heating resistor 31Ω ± 3Ω

Heating current ≤ 180mA

Heating voltage 5.0V ± 0.2V

Heating power ≤ 900mW

Measuring voltage ≤ 24V