The AX-DH series are active infrared beams ideal for stacking applications for high security. Automatic control of the beam power allows to optimise the performance of detection and adjust the beam input to avoid false alarms from outside elements such as dense fog or reflections. Individual addresses are assigned to each pair of beams to eliminate crosstalk from other external sources, reducing the costs for installation time and planning of large systems. The beams can be mounted on a wall or pole and have a highly durable IP65 structure equipped with anti-frost hood cover and resistance to water and dust. AX-350DH MKIII is the model with up to 100m detection range.