| I am now talking about Self Protection using | | | | Goes off when someone opens a door uninvited. |
| noise producers and light blinders or | | | | A keychain alarm with a flashing light, a |
| "blinkies". One such item is called a | | | | door alarm, hanging on the door knob, goes |
| "screechers" alarm. It emits an ear piercing | | | | off when someone touches the knob, a magnetic |
| blast that's readily recognized as a call for | | | | door alarm, bolted to the door jamb or the |
| help. Another is an Electronic Whistle, | | | | side of a window, and goes off with noise |
| emitting a loud 120DB whistle. It can be | | | | when someone opens the door or window. How |
| used as a safety alarm for crime prevention | | | | about an item called "Secure Dog". When an |
| or police for traffic duty, a locator in | | | | intruder gets near the door it starts barking |
| emergencies, dog handling, a referee for | | | | like an angry dog, scaring possible crooks |
| sports games, etc. When out walking the dog, | | | | away, and a pool alarm" that sounds an |
| just push a button to keep pests away. | | | | audible alarm when children or pets fall into |
| | | | the pool. |
| Another type, a wedge shaped door alarm. | | | | |