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MQ303A Semiconductor Type Alcohol Sensor

136.00

Winsen Semiconductor Type Alcohol Sensor is an original and brand new mini size alcohol sensor for gift-type breathalyzer use. The sensitive material of the MQ303B gas sensor is a semiconductor material which is with lower conductivity in clean air. When the target alcohol gas exists, the sensor’s conductivity gets higher along with the gas concentration rising.

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Users can convert the change of conductivity to correspond output signal of gas concentration through a simple circuit.
Semiconductor Type Alcohol Sensor has a high sensitivity to Alcohol gas. It is a kind of low-cost sensor for kinds of applications and also a mini size gift-type Alcohol sensor breathalyzer.
Applications
It has a high sensitivity to alcohol and quick response and resume, widely used in portable alcohol gas detectors.
Features
Responsive to Alcohol gas
Compatible with 5V
Cost-efficient
Specification

Model Type MQ303B
Sensor Type Semiconductor
Standard Encapsulation Metal
Target Gas Alcohol
Detecting Range 20~ 500ppm alcohol
Load Resistance Adjustable
Heater Voltage ≤6V DC
Sensitivity R0(in air)/Rs(in 125ppm C2H5OH)≥3
Tem. Humidity 20℃±2℃ 55%±5%RH

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