The SL-QN series is able to be stacked in towers. Be sure to consider our POE encoder PIE-1 in order to connect your infrared beam sensors to AXIS ACAP cameras and also to all leading VMS platforms, enhancing the performance of the security system.
Visit the Optex Europe Ltd website for more information on SL-350QN 100m Quad Beam Active Infrared (AIR) Sensor