The GRAPHITE digital motion detector uses the phenomenon of infrared radiation emission by each object with a temperature different from the absolute zero. Its special semiconductor sensor, in combination with a precise optical system is able to detect changes in the intensity of infrared radiation in relation to the background temperature.

The SATEL GRAPHITE motion detector features high sensitivity combined with great resilience to interference and false alarms. The technologically advanced device encompasses dual PIR element in a small housing, typical for conventional PIR sensors. The detector uses an advanced signal processor with the high resolution sensors. The mechanism of digital temperature compensation enables work in a wide temperature range. Additional advantages of the detector include the alarm memory and the ability to remotely switch on/off the LED indicator.