MQ-4: ออกแบบเพื่อตรวจจับแก๊สมีเทน (CH4) ใช้ในระบบตรวจสอบการรั่วของแก๊สธรรมชาติ
MQ-4: เน้นตรวจจับก๊าซมีเทน (CH4)
MQ-4 Sensor Description:
Sensitive material MQ-4 gas sensor is used to clean the air in the lower conductivity of tin dioxide (SnO2). When there is the environment in which the combustible gas sensor , conductivity sensor with increasing concentration of combustible gases in air increases . Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal. MQ-4 gas sensor of high sensitivity for methane , propane , butane and has a good sensitivity. This sensor can detect a variety of combustible gases, especially natural gas , is a low-cost sensor for a variety of applications .
Suitable for home or factory methane gas , natural gas and other monitoring devices to test natural gas, methane 300 to 10000ppm;
Features:
Size: 32X20X22mm/1.25*0.78*0.86”
The main chip: MQ-4 gas sensing probe
Operating voltage: DC 5V
Power (current) : 150mA
DO Output: 0.1V/5V
AO Output: 0.1-0.3V
Indication of the signal output
Dual signal output (analog output, and TTL level output)
TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage.
Of methane gas, the natural gas has better sensitivity
Applications:
Suitable for home or factory methane gas, natural gas, and other monitoring devices
Package Included:
1 x MQ-4 Methane Gas Sensor Natural Coal Co Methane Detector Module For Arduino