The Vivint Ping V-PIR2-345 Wireless Motion Detector Sensor is a smart home security accessory that provides wireless connectivity for monitoring and detecting movements in your home. This unit includes a PIR motion detector and is designed by the trusted brand Vivint. With its model number V-PIR2-345, this sensor is a key component in creating a comprehensive surveillance system for your living space, allowing you to enhance your home security and peace of mind.