Absolutely! You can install door sensors on sliding glass doors. These sensors are designed to detect any movement when a door or window is opened and then alert the security system accordingly triggering an alarm if necessary. Slim sensors specifically made When it comes to sliding doors you’ll find slim sensors specifically made for them that can be mounted along the door frame and have magnets connecting with the moving part of the door to monitor its opening and closure. When shopping for these sensors keep in mind their size so they won’t interfere with the operation of your sliding doors. Make sure to open and close the door to verify it is easy to slide.