Product Summary of Alarm Personal Ceiling Wireless PIR Detector
Wireless Ceiling PIR detector adopts advanced sensor and special IR processing chip. It works by detecting spectrum of human body infrared. When human activate within the detective area, the microprocessor will alarm after comparing and operating the received signals. The temperature compensation could solve the problem caused by environment temperature change and increase the detecting ability. Ceiling-mounted installation is hiding and beautiful. It is widely installed for the halls, aisles, etc. And can be compatible with wireless alarm panels of 433MHz from our company. It's packaged with a color cardboard box.
http://www.karassnsecurity.com