Power Module 2021
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
$5.69 $4.27
Contact us for wholesale price
Time Remaining:
- OR - - OR - Add to Wish List

Cheaper Buy Together

$13.70-12%Bundled Price:$12.06
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.

First we should say that ICStation doesn't accept any form of pay on delivery.Items used to be shipped after receiving the order info and payment.

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) West Union


We know that some of you do not have the Paypal account. 

But please take it easy. You can use West Union payment method.
Learn more at West Union at www.westernunion.com.
For the receiver info, please contact us at orders@icstation.com.
3) 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$500. The bank will charge about US$60 for the transfer fee if we do the payment in these ways. 

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

1. Hongkong / Sinapore Airmail

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $3 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

Free Shipping for all orders over $20 ^0^ (with free tracking number and delivery insurance fee)

(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. EMS/DHL/UPS Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
Europe& America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Note: Shipping Fee to other countries, please contact orders@ICStation.com

(2) Shipping Time
Shipping time is 3-5 working day (about 1 week) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver in 2-3 day (DHL) or 1 week (EMS,) or 2 weeks (Registered Email), please pay attention to the arriving time of the package. 


1) APO and PO Box Addresses

We strongly recommend that you provide a physical address for order delivery. 
Because that DHL and FedEx are unable to deliver items to APO or PO BOX addresses. 
2) Contact Phone Number
Receivers' contact phone number is required by express shipping agency for the package delivery. Please provide us with your latest phone number.

3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

Registered Airmail: www.17track.net/en

Customers who bought this product also purchased

Micro USB Digital LCD Display Time Delay Relay Module 6-30V Control Timer Switch Trigger Cycle Module
DC to DC Step Down Buck Converter 4 USB Interface Adjustable Power Supply Module Board DC 24V/12V to DC 5V 5A
ICStation Heartbeat Sensor Pulse Sensor Heart Rate Sensor Module for Arduino
0.96" Inch I2C IIC Serial OLED Display Module 128X64 White Light SSD1306 12864 LCD Screen for Arduino
DIY Kit Power Supply Voltage Monitor Electronic Components Suite
113KHz 16mm Ultrasonic Mist Maker Fogger Atomizer Transducer Ceramic Discs for Humidifier Replacement Parts
CD4511BE DIY Kit Module LED Display Digital Logic Test Module Learning Suite
DIY 6 Bits C51 Digital Electronic Clock Red LED AT89C2051 Chip DIY Kits Soldering Practice Learning Suite DIY Module
Red Countdown Timer 60s Rotary Electronic Clock DIY Kit 60s Rotate Seconds Count Smart Timing Alarm Teaching DIY Kits
MPU6050 3 Axis Gyroscope Accelerometer Sensor Module (3V-5V Compatible)
DIY Kit NE555 Water Tank Water Liquid Level Automatic Controller Electronic Components Suite

Your Recent History

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