The yale alarms pir image camera will activate the alarm when motion is detected and send an image to your smartphone free app download required you can also request an image at any point and time via the yale smart home alarm app for ultimate peace of mind it is wireless and easy to pair with your yale home alarm system allowing you to extend you system to tailor it to your individual needs uses 868mhz technology this frequency is tightly controlled making it a clearer channel with less interfe