Ring Alarm Contact Sensor, Expands Your Ring Alarm Kit & Adds An Extra Layer Of Security To Your Home, Attach Alarm Contact Sensors To Any Door Or Window In Your House Or Apartment, Get Instant Alerts On Your Phone & Tablet Whenever Your Doors Or Windows Are Opened, Alarm Contact Sensor Easily Installs In Just Minutes Without Any Tools Or Professional Installation Required, Simply Place Your Contact Sensor On Any Door Or Window Frame, Connect It To Your Ring Alarm Base Station & Youre All Setup.
