The CDX series is an advanced dual-technology sensor designed to give extremely stable detection performance for a variety of indoor commercial applications. The CDX series features 82 detection dense zones for unparalleled distinction between human and small animal presence in the protected area. In addition, CDX series features the newly developed digital MPU Core Platform for reliable and accurate performance. The CDX series also utilizes AIR technology to detect attempted masking. To maintain stable performance, the CDX series differentiates between true masking and other masking caused by environmental changes such as dirt/dust adhesion, temperature changes and direct light by optimizing its sensitivity for the most reliable protection. Features Digital Quad Zone Logic: 82 dense detection zones, accurate distinction between human and small animal presence Digital AIR anti-masking Double conductive shielding Plug-in EOL unit Size analysis function ignores sources of false alarms Interchangeable main unit