[shortdesc]
Application:Widely used for industrial field instrumentation, industrial-process control and safety protection.
Feature:High sensitivity, high resolution,low power consumption,Output method: IIC, analog voltage signal, etc.
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Production Description:
MH-742B is a universal type intelligent sensor to detect combustible gas,taking advantage of non-dispersive infrared (NDIR) principle. With high selectivity, no oxygen dependence, high performance and long lifespan features, MH-742B also has built-in temperature compensation feature. MH-742B is a compact and high-performance sensor based on infrared absorption of gas detection technology, micro-machining and sophisticated circuit design.
Feature:

High sensitivity, high resolution, low power consumption
Output method: IIC, analog voltage signal, etc.
Quick response
Temperature compensation, excellent linear output
Excellent stability, Long lifespan
Anti-poisons, anti-vapor interference
Detect combustible gas concentration matching with flame-proof marked detector in area 1&2 explosive environments which mix of ⅡA, ⅡB, ⅡC and T1-T6 flammable gases, vapors and air.

Application:
Widely used for industrial field instrumentation, industrial-process control and safety protection.

Main technical parameters:

Product Model	MH-742B
Gas Detected	Combustible gas (see Table 2 for details)
Working Voltage	4.5 V ~ 5.5V DC
Average Current	< 100mA
Interface Level	3.3V
Measurement Range	0~100%VOL optional (view table 2)
Output Signal	UART
Output Signal	0.4-2V DC
Warm-up Time	<2min
Response Time	T90 < 30s
Working Temperature	-40℃ ~ 70℃
Working Humidity	0 to 95%RH, non-condensing
Dimension	Φ39×44mm
Weight	280g
Lifespan	>5 years
Protected Class	IP54

1pc of MH-742B Combustible Gas Sensor