Your position: Home / Sensors

Free shipping! Keyestudio MQ-4 Natural gas Methane Sensor Detection module for arduino

    Please select the information you wantX
(983 available)
Shipping Cost:
Estimated Delivery Time:
Please select the country you want to ship from
  • Description
  • Reviews(38)

KS0042 MQ-4KS0042 (6)KS0042 (7)KS0042 (8)KS0042 (1)KS0042 (4)


MQ-4 application: it can be used in household and industrial-level gas leakage detection device to detect natural gas and methane. It is featured with wide detection range, high sensitivity, fast response and recovery time, with excellent stability, long service life and simple drive circuit.
Applicable gas: natural gas, methane
  • Detection range: 300 ~ 10000ppm
  • Characteristic gas: 5000ppm methane
  • Sensitivity: R in air/R in typical gas≥5
  • Resistance of sensitive material: 1KΩ~20KΩ in 5000ppm methane
  • Response time: ≤10s
  • Recovery time: ≤30s
  • Heating resistance: 31Ω±3Ω
  • Heating current: ≤180mA
  • Heating power: ≤900mW
  • Heating voltage: 5.0V±0.2V
  • Measuring voltage: ≤24V
Working condition of MQ-4:
  • Environment temperature: -20~+55
  • Humidity: ≤95%RH
  • Environment oxygen content: 21%
Storage condition of MQ-4:
  • Temperature: -20~+70
  • Humidity: ≤70%RH
Sample code:
void setup()
Serial.begin(9600); //Set serial baud rate at 9600 bps
void loop()
int val;
val=analogRead(0);//Read Gas value from analog 0
Serial.println(val,DEC);//Print the value to serial port


Average rating: 5.0 based on 38 reviews
Share your thoughts with other customers
Write a review
Product reviews can be carried out after the member login, please click here to login