Designed for high security commercial indoor environments and large residences, the new ceiling mount DT8320 DUAL TEC® motion detector series with anti-mask technology quickly detect intentional and accidental masks or attempts to block the detector, ensuring a trouble condition is immediately sent to the control panel. A 360° field-of-view and an extremely dense and wide detection coverage reduces the need for multiple detectors. Anti-masking technology combined with Honeywell patented sensing technologies, high quality mirror optics and microprocessor-based DualCore signal processing, will improve catch performance and reduce false alarm and trouble conditions. Beneath the two-piece, easy-open enclosure, installers will find easy access to the wiring terminal and built-in features which simplify the installation experience and reduce installation time. Furthermore, the new detectors come equipped with integrated EOL resistors with easy selectable DIP switchesor two wire V-Plex® technology. A flexible mounting height adjustment dial and an enhanced flash light walk test will reduce time and trips up and down the ladder.