The only TSA accepted locks that let you know when your TSA locks have been opened with the patented Security Window Alert System.
 
The SearchAlert® Security window changes color from GREEN to RED when the TSA secured access device is used to open the lock or when an unauthorized person has opened the lock using a counterfeit opening device.
 
•Recognized & Accepted by the TSA
•Security Window cannot be altered with a paper clip
•Security Window can only be reset by a person knowing the combination
•Zinc Die Cast Body 
•Steel Shackle is virtually unbreakable
•Locks feature a secure system that allows the Transportation Security Administration (TSA) to unlock and re-lock your bags
•Rugged, easy-open shackle operates smoothly and fits most luggage zippers