Happy Xmas 2023
Home > DIY Module > Function DIY > DIY Kit MQ-2 Smoke Sensor Detector Natural Gas Alarm Electronic Components Suite

DIY Kit MQ-2 Smoke Sensor Detector Natural Gas Alarm Electronic Components Suite

5 9
$7.99 $5.19
Contact us for wholesale price
Time Remaining:
- OR - - OR - Add to Wish List

Cheaper Buy Together

$13.13-12%Bundled Price:$11.56
Tested by ICStation's Outstanding Partner Stefano91ste:
(The language in the video is English)
    With the continuous improvement of people's living standards, gas and natural gas have entered thousands of households, bringing convenience to everyone, but also there are many safety hazards. Gas poisoning accidents also occur from time to time.
Therefore, we must regularly check for leaks. The gas detection and alarm circuit is composed of components such as gas sensor MQ5, voltage comparator LM393 and voice chip C002. It can detect the combustible gas in the air and automatically sound and light alarm.
Circuit principle:
    The gas sensing material used in the MQ-2 gas sensor is tin dioxide (Sn02) with low conductivity in clean air. When there is flammable gas in the environment where the sensor is located, the conductivity of the sensor varies with the concentration of flammable gas in the air. Increased and increased, it is suitable for household or industrial detection devices for gas, natural gas and liquefied gas, and has excellent resistance to ethanol and smoke interference.
  It is an economical sensor suitable for a variety of applications. C002 is a three-tone optional alarm sound voice chip, which internally stores the sound of police car 110, fire alarm 119 and ambulance 120. The external oscillating resistor is lOOK ~ 240Kohm (the higher the resistance, the slower the sound speed), it can be driven after power-on.
 The buzzer sounds. 1 pin grounding, 2 pin output, 3 pin selection sound terminal, 4 feet connected to the positive pole of the power supply, 5 and 6 feet connected to the oscillation resistor. The gas detection and alarm circuit uses the alarm sound of the fire alarm 119, and its working voltage is generally 2.4 to 3.6V.
There are currently no product reviews.

ICStation doesn't accept any form of pay on delivery. Items used to be shipped after payment. Below are the payment methods we can accept at the moment:

1) Paypal Payment

PayPal is a secure and trusted payment processing service that allows you to shop online. PayPal can be used at icstation.com to purchase items by Credit Card (Visa, MasterCard, Discover, and American Express), Debit Card , or E-check (i.e. using your regular Bank Account). 

We are PayPal Verified 


2)  Bank Transfer / Wire Transfer / T/T


Bank Transfer / Wire Transfer / T/T payment methods are accepted for orders which the total price is up to US$300. The bank will charge about US$50 for the transfer fee if we do the payment in these ways. Feel free to contact us for bank payment details if you need pay via bank.

For other payment method, please contact us at orders@icstation-team.com for more details.

Customers who bought this product also purchased

DIY Kit Dimming Table Lamp Circuit Board, Unidirectional Thyristor Temperature Control Speed Regulation Electronic Kits
DIY Kit HC-SR04 Ultrasonic Automatic Obstacle Avoidance Intelligent Car, STEM Electronic Kits for School Students Learning Competition DIY Project
DIY Kit AT89C2051 DS18B20 Kit Digital Temperature Controller Microcontroller Design Thermometer Electronic Soldering Kits
51 Single-chip Microcomputer Traffic Light DIY Kit Intelligent Signal Lamp Electronic Soldering Training Practice kits
Positive And Negative DC Regulated Power Supply DIY Electronic Kit, 3 Terminal Regulated 9V Dual Power Module Assembly Kits
DIY Kit LED Follow Spot Lights LED Light Chaser Game Electronic Soldering Practice Learning Kit
Gate Circuit Combinational Logic Circuit Analysis Assembly Testing DIY Kits
20S 20secs Voice Sound Module Sound Recorder Recording Module Kit ISD1820P DIY Kits DC 3-5V
DIY Kit Capacitor Three Point Oscillation Circuit
DIY Negative Feedback Amplifier Circuit Kit with Capacitor-Coupled Analogue Electronic Technology Training Parts
Photosensitive Mobile Robot Simulation Firefly Electronic DIY Kit
DIY Kit NE555 Infrared Reversing Radar Sensor 30cm Distance Sensing Analog Circuit Electronic Soldering Kits

Your Recent History

DIY Kit MQ-2 Smoke Sensor Detector Natural Gas Alarm Electronic Components Suite