MQ-4 Gas Sensor Module detects the presence of methane (CNG) gas at concentrations from 300 ppm to 10,000 ppm, a range suitable for detecting gas leaks. The sensor’s simple analog voltage interface requires only one analog input pin from your microcontroller.
Power requirements : VCC – 5V±0.1
DO output : TTL digital 0 and 1 (0.1 and 5V)
AO output : 0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
Detection Gas : Natural gas/Methane
Detection Concentration : 200-10000ppm (Natural gas / Methane)
Interface: 1 TTL compatible input (HSW), 1 TTL compatible output (ALR)
Heater consumption: less than 750mw
Operating temperature: 14 to 122 °F (-10 to 50°C)
Used in gas leakage detecting equipment for homes and industry. They are suitable for detecting of CH4 and CNG.
Industrial Combustible gas detector
Portable gas detectors
1 x MQ-4 Gas Sensor Module for Methane Gas