The Mini Travel Alarm with PIR Sensor is affordable and can be used to effectively deter assailants.
It is activated by pulling the alarm cord located at the top of the unit. It will also detect motion up to 9 feet away and emits a loud 15 second 100db blast. When you slide the cover down you will expose the infrared sensor and the off/auto switch that in the “auto” position will start detecting motion in 60 seconds.
The Mini Travel Alarm with PIR Sensor also acts as an LED flashlight and uses AG13 batteries (included). The unit is compact and easily carried and concealed.