> Microwave using X-Band patch antenna
	> Pet immunity 20kg
	> AND/OR function(AND means alarm for MW&PIR, OR means alarm for MW or PIR)
	> External tamper
	> SMT technology, high EMI/RFI immunity
	> White light immunity 20000 Lux
	> Temperature auto-compensation, avoiding false alarm
	> Microwave detection range adjustable
	> Pulse count optional
	> Innovative railway installation method, easy for installation