# Gas Sensor MQ-6 LPG Propane Butane

> MQ-6 gas sensor module for detecting LPG, propane, butane and LNG, suitable for leak monitoring in Arduino projects or industrial systems. Power supply 5VDC, 150mA. Analog output 0-5V proportional to gas concentration and digital TTL output for thresholds. Good resistance to interference from ethanol and smoke, quick integration via analog or digital pin reading.

- Page: https://sigmanortec.ro/en/gas-sensor-mq-6-lpg-propane-butane
- Price: 14.34 RON
- Availability: In stock; 1-2 zile
- Reference: 22135 · EAN: 5949584258580
- Category: Mechatronics and IoT > Sensors and Modules > Gas and Air Quality Sensors
- Package (shipping data): 0.007 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 03:25 (Europe/Bucharest)

## Description

MQ-6 based gas detection module for monitoring LPG, propane, butane and LNG leaks in Arduino projects or industrial systems. It operates at 5V, offers 0-5V analog output proportional to concentration and TTL digital output for thresholds, has good resistance to ethanol and smoke interference, fast integration by reading on analog or digital pin.
MQ6 sensor used to detect LPG (liquid petroleum gas), Butane, Propane, LNG (liquefied natural gas).
Specifications:
Excellent resistance to interference with Ethanol and Smoke
Supply voltage: 5VDC, 150mA
Output: Digital pin or Analog pin
Analog output: 0 - 5V; the voltage increases or decreases depending on the detected concentration
TTL Digital Output
Analogue reading code example:
void setup() {
// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
}
// the loop routine runs over and over again forever:
void loop() {
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
Serial.println(sensorValue);
delay(1); // delay in between readings for stability
}