- Albuquerque, New Mexico, United States
- Jun 5th
Sensor, Infrared, Passive, Microprocessor Controlled, Advisor 851 Aritech #DR851 GENERAL DESCRIPTION Advisor 851 passive infrared motion sensors measure the infrared energy radiated from every object within its field of view. The DR-851 looks for changes in the level of this radiation. If the change is large enough and occurs rapidly enough, an alarm will result.