MQ-2 Gas Sensor Module Smoke Hydrogen Butane LPG Methane Detector
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Product Description
Gas Sensor Module MQ-2 Smoke Hydrogen Butane LPG Methane Detector
Introduce:
MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-2 gas sensor high on gas, propane, hydrogen sensitivity of detection of natural gas and other flammable vapors are also very good. This sensor can detect a variety of flammable gas, is a low-cost sensors for a variety of applications.
Module Features:
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 ;
Product dimensions : 32 (L) * 20 (W) * 15 (H)
Has a long life and reliable stability
Rapid response and recovery characteristics
Chip: LM393, ZYMQ-2 gas sensors
Working voltage: DC 5V
Detection of gas: combustible gases, fumes
Detectable concentration :300-10000ppm (flammable gas)
Electrical properties:
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 .
Wiring:
1, VCC: positive power supply (5V)
2, GND: power supply is negative
3, DO: TTL switching signal output
4, AO: analog signal output
Module Applications:
Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc.
Package Included:
1x MQ-2 module
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Momentary Push Button 16mm Waterproof Metal Horn Switch
Product Description:100% brand new and high qualityEasy to install, waterproof, shockproof, and durable.The switch will turn on when you press the button, and it will turn off when you undo the button..
Heavy Duty Rocker Toggle Switch 6A 250V 6Pin ON/Off/On Metal Switch
About this item3 Position, ON -OFF- ON. Mounting hole diameter: 12mm.6 terminal pin. Power: 6A 250VACThe toggle switch is made of high-quality industrial material, solid and durable, ensure long time ..
DIP Slide Switch 1 2 3 4 5 6 7 8 9 10PIN 2.54mm Pitch Toggle Switch Red Snap Switch
DIP Slide Switch 1 2 3 4 5 6 7 8 9 10PIN 2.54mm Pitch Toggle Switch Red Snap Switch..
TTP226 8-Channel Digital Capacitive Touch Switch Sensor
1. Onboard TTP226 capacitive 8-key touch sensor IC2. Onboard 8-channel level status indicator3. Working voltage: 2.4V-5.5V4. The module can set output mode, key output mode, longest output time and fa..
STE115A12 Toggle Switch 22x14mm 8A/250V electric tool switch grinder drill electric hammer cutting machine
Part Number STE115A12-ZFeatured Product Copal - Toggle SwitchesStandard Package 20Category SwitchesFamily Toggle SwitchesSeries STEPackaging BulkCircuit SPSTSwitch Function On-OffCurr..
6-24V to 5V DC-DC Buck Converter Down Module 3A USB phone charging Modules
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