Door Handle Touch Alarm, Hang-On Anti-Theft Siren (9 V)

A simple hang-on alarm for a hotel room, rented room or interior door: loop the cord around a metal door handle and the unit sounds when someone touches the handle from outside. No installation or drilling is needed, which makes it practical for travel. It runs on a 9 V battery (shown in the product photo); the supplier lists a working voltage of 9 V and an alarm current of 100 mA. Designed for doors with a metal handle or lock. Package: one alarm.