MQ303A Semiconductor Type Alcohol Sensor

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SKU: rz24324016 Category: Gas and Dust Sensor

Description

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. 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

Package Includes:

1 x MQ303A Semiconductor Type Alcohol Sensor

Additional information

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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Shipping & Delivery

Shipping and Delivery Policy

1. Shipping Process:

Orders are processed within 1-2 business days after payment confirmation.
Delivery time varies based on location and selected shipping method, typically ranging between 3-7 business days.
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Ensure you verify product compatibility before purchase, as returns will only be accepted for unopened and unused items in their original packaging.

7. Refund Policy:

Refunds will be issued only for canceled orders before shipment or wrong/damaged items received (subject to investigation).
No refunds or replacements for products that have been tampered with, soldered, or physically damaged by the customer.

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