gas types and characteristics: different types of combustible gases have different lower explosion limits and toxicity characteristics. therefore, the setting range of low report and high report of combustible gas alarm needs to be adjusted according to the characteristics of the measured gas.

application scenarios and requirements: the setting range of combustible gas alarm should also consider the requirements of application scenarios, such as industrial environment, commercial environment or home environment. Different application scenarios may have different requirements for security warning, so it needs to be adjusted and optimized according to the actual situation.

Calibration and maintenance: The combustible gas alarm should be calibrated and maintained regularly to ensure its accuracy and reliability.At the same time, the operator should be familiar with the use of combustible gas alarms and the meaning of alarm signals, so that they can quickly take correct countermeasures when receiving an alarm.

To sum up, we can see that the setting range of low report and high report of combustible gas alarm is determined according to relevant national standards and specifications, the characteristics of the measured gas and the requirements of application scenarios. By reasonably setting the alarm value of the combustible gas alarm, it can be ensured that the alarm is issued in time before the combustible gas concentration reaches the dangerous level, thereby effectively preventing potential safety risks.