Feature 
	*  Effective detection of liquefied petroleum gas, gas, 
	 natural gas, marsh gas etc. 
	*  Audible alarm, wireless remote alarm function 
	*  Triggers the alarm automatically from mobile phone in alarm mode 
	*  Support mobile phone APP control 
	*  Wireless networking 
	*  Radio transmition & receiving distance: 100 meters (without shelter) 
	*  High reliability sensor 
	*  High performance microprocessor control 
	*  Fault detection indication automatically