The phrase "alarm devices" is correct and usable in written English.
It can be used to refer to various types of equipment designed to alert individuals to potential dangers or emergencies, such as smoke detectors or security alarms.
Example: "The building is equipped with state-of-the-art alarm devices to ensure the safety of all occupants."
Alternatives: "alert systems" or "warning devices".
Under pressure to put security measures in place as quickly as possible, the airlines are rushing to put cameras or other alarm devices on board.
These include electronic heat and smoke detectors that can activate audible alarm devices to warn the building population and automatically notify local fire departments.
The purpose of this study is to determine optimum locations of alarm devices and the effects of hearing protection in an extremely noisy environment.
The improvement of biological information contained in such data holds promise for people designing alarm devices and health and welfare indicators for farmers and/or vets.
First, an analytical model is presented for predicting the optimal number of alarm devices, their locations, and their sound intensities if equipment operators have no hearing protection (Case 1).
"We have some vandalism, we pick some kids up for drinking or drugs," said Police Chief Ralph Scott, "but we have little to no violent crime". About 20percentt of the homes here are equipped with sophisticated alarm devices, he said.
Gas-detecting alarm device should be installed at the downwind position above the leaking hole.
"This is where Seth and I butt heads, because he's covering my fire alarm device," Mr. Zizmor said.
What was needed, he figured, was some sort of personal alarm device that transmitted a person's location.
Targus (www.targus.com) has a motion-sensing notebook alarm device called the Defcon 1 ($50) that shrieks louder than Marilyn Manson when somebody tries to steal a laptop or backpack.
They came up with a solution, and filed their first patent application in 1994 for a "personal alarm" device that used GPS technology.
