The Everspring EVR_SP103 Z-Wave motion detector is triggered by movement; allowing it to be used as a security and home automation sensor. The sensor monitors changes in infrared level and movement that indicate a person’s presence. Once detected, the unit sends an alert to all the Z-Wave devices it is associated with. It supports one Z-Wave association Group, which enables it to communicate with a total of five Z-Wave devices. This means that when the unit is triggered, all devices associated with the unit will receive the alert. The unit is battery-operated, an alert will be sent to the central controller and the unit’s LED will flash when the battery level becomes too low. It also includes a tamper alarm that sends an alarm signal if anyone tries to prevent it working.
– See more at: http://www.everspring.com/en/portfolio-item/sp103-pir-detector/