. Detection: outdoor 25,40,60,80,100 & 120m
. With selectable 8-channel beam frequencies
. Powerful and reliable twin beam detector
. Easy optical alignment with LED indication
. Adjustable beam interruption period
  (50~700msec)
. Form C relay providing more applications
. Up to 8-sets for multiple installation
. Target yellow color, tuned to the peak
   wavelength of human vision,  to be easily 
   targeted in the beam alignment