Travel Door Alarm
The travel door alarm allows you to place a sensor in the door crack, altering you when the door is opened. This product can be used on any door, but is ideal for travel, when staying at hotels or friends and families. The product is made of plastic and is super compact. The built-in emergency LED flasher will let you know when the hotel staff decides to enter unannounced. Includes three AG13 button-cell batteries.