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기능성모듈(MCU, Utility) > 쎈서모듈

알콜쎈서 [MQ3]

-> 메탄,알콜 쎈서
1.출력 : ANOGE & DIGITAL
2.전원 : DC5V 150mA
3.배선 : VCC,GND,Digital Out,Analog Out

＊가격 : 판매불가

Item specifics
Output:Analog
SensorType:Gas Sensor
Material:Mixture
Brand Name:Sensor
Model Number:MQ-3
Usage:Gas Sensor
Theory:Inductance Sensor
is_customized:YesGas sensor:MQ-2 to MQ-135

1pcs MQ3 MQ 3 MQ-3 Smoke Liquefied Flammable Methane Gas Sensor Module for Arduino Diy Starter Kit

Sensitive material MQ-3 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). When present in the environment in which the alcohol vapor sensor , a conductivity sensor with increasing concentration of alcohol gas in air is increased . Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. High MQ-3 gas sensor sensitivity to alcohol , gasoline resistant to interference , smoke, water vapor . This sensor can detect various concentrations of alcohol atmosphere , is a low-cost sensors for a variety of applications .

Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc. ;

•Using high-quality dual-panel design, with power indicator and TTL signal output instructions;
•The switching signal having a DO (TTL) output and analog output AO ;
•TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
•Analog output voltage with the higher concentration of higher voltage.
•A gas, natural gas, city gas , smoke better sensitivity.
•There are four screw holes for easy positioning ;
•Has a long life and reliable stability
•Rapid response and recovery characteristics

•Input voltage : DC5V Power consumption ( current ): 150mA
•DO output : TTL digital 0 and 1 ( 0.1 and 5V)
•AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
•Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .

•VCC: positive power supply (5V)
•GND: power supply is negative
•DO: TTL switching signal output
•AO: analog signal output

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