The SALCO model 2004B passive infrared detector employs the reliable principle of passive infrared detection coupled with state of the art micro electronic circuitry to achieve the highest levels of performance and reliability. The 2004B constantly measures the ambient temperature of all objects placed within its field of view. When an intruder enters the protective field of view the 2004B will detect a rapid change or differential in temperature and will activate its alarm output.

The DS-1000 requires no external power and has only two conductors to connect. Model DS-1000 has a wide angle field of view and comprises two dual infrared sensors for the ultimate in false alarm immunity. Powered by batteries with a lifetime of up to ten years, the output conductors can be wired into existing hardwire loops or employed to activate wireless transmitters.

Features and operating characteristics are identical with the DS-1000 with the exception of the case enclosure. The DS-1000R is enclosed in a heavy duty weatherproof case for extreme indoor environments