Yale Remote Key Fob SR-KF Specifications:Suitable for use with any Smart Living Alarm kit or Easy Fit Alarm KitFeatures:Key Fob conveniently sized to fit on a key ringCan be used to set or unset your alarmIncludes panic alert buttonIdeal for multiple users Yale Motion Detector Pet Friendly SR-PETPIR Yale Door/Window Contact SR-DC Yale Smart Home Alarmsystem Mobile Connected SR-3800i