ماژول سنسور تشخیص گاز متان / طبیعی MQ-4

The MQ-4 gas sensor is a Metal Oxide Semiconductor (MOS) type gas sensor, mainly used to detect the concentration of methane gas (CNG) in the air at home or industry. This sensor contains a sensor element, which is mainly aluminum oxide-based ceramic, coated with tin dioxide, enclosed in a stainless steel grid. Whenever the gas comes into contact with the sensor element, the resistance of the element changes, then the change is measured and sent as an analog voltage to obtain the concentration of the gases present. Its measurement range is 300-10000 PPM to detect gas leakage. Methane combustion is highly exothermic, meaning that it releases a large amount of heat when ignited, which is useful when used in a controlled manner, but devastating if an accident occurs.

Gas leak detectors

Home security systems

Industrial gas detection systems

Gas detection: natural gas / methane

Concentration: 300-10000 ppm

A DO (TTL) switching signal output and AO analog signal output

Product dimensions: 32 (L) * 20 (W) * 22 (H)

Input voltage: DC5V power

Current: 150 mA

DO output: TTL digital 0 and 1 (0.1 and 5V)

AO output: 0.1-0.3V, (relative to pollution), for a maximum voltage concentration of about 4V

Operating temperature: 14 to 122 degrees Fahrenheit (-10 to 50 degrees Celsius)

Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)