The Z-Wave Plus 3 in 1 sensor is designed with three detection sensors:
The detector can be used as a security device or home automation device. When the detector is cooperated with security appliances, the detector is acting as a security device by detecting changes in infra-red radiation levels. If a person moves within or across the devices field of vision, a trigger radio signal will be transmitted to cause full alarm condition in order to frighten intruders away. Once night falls, the percentage of ambient illumination is lower than preset value. If a person moves within or across the devices field of vision, a trigger radio signal will be transmitted so as to turn connected lightings for better illumination. Every time when PIR trig, the sensor will also send temperature and illumination value as well. Also the temperature will send out the value when temperature changes. Note: The illumination sensor does not work with Fibaro Homecenter 2 and Zipabox yet.