Honeywell DT900 DUAL TEC 90 x 80 wide area with anti-mask

The use of two technologies—microwave and PIR—and features like anti-masking, vandal-resistant housing, large coverage patterns and three microcontroller-based sensitivity modes, make the powerful DT900 DUAL TEC sensors ideal for the harshest commercial and industrial environments. Microcontroller-Based Dual Technology Microwave and passive infrared (PIR) technologies, combined with microcontroller-based advanced signal processing, provide excellent detection while virtually eliminating false alarms and costly service calls. Sensor Sabotage Prevention The DT900 Series uses Active Infrared for anti-masking to detect attempts to mask the sensor. The patented look-down lens catches saboteurs who try to disable the unit from below, while three different tamper switches deter would-be