The phrase "alarm light" is correct and usable in written English.
It can be used to refer to a light that indicates an alarm or warning, often found in machinery, vehicles, or safety systems.
Example: "When the alarm light turns on, it signals that there is a malfunction in the system."
Alternatives: "warning light" or "alert light".
However, if the flow fell substantially or stopped completely the alarm light went out.
(c) LIGHT: The LED light can be used as a bedroom light, as well as alarm light.
Afterwards, the design was changed; the alarm light then remained lit as long as the low flow continued.
If the flow diminished only slightly, the light beam remained broken and the alarm light stayed on after the alarm bell was silenced.
An alarm light did come on once, but that was only because the other driver — a farming friend who needed a break from the pigs — pushed the wrong button while adjusting the mirrors.
The staccato bridge into the middle of the song is remarkably tense as the flight controllers discuss whether the landing attempt should be aborted because of an alarm light that has popped on.
"You're doing extraordinarily well here, sir," says the legendary heavy-metal frontman, as I wrench the joystick around and yellow alarm lights flash.
The lunar module, or LM (pronounced lem), was dubbed "Eagle". Its 1969 computer, overtaxed during the descent and flashing alarm lights as it fell behind on its work, guided the spiderlike craft most of the way to the surface.
"The backbone to the home automation is standard, and the modules are optional," Mr. Scarda said, explaining that they range from $2,500, for a Web-based system including a basic alarm, lighting controls and an iPod dock in the master bath, to $15,000 for a full home theater on the lower level and centralized video that can be seen on any TV screen in the house.
Not to skimp on the features, this trouser-snake-elongating device controls "your TV/video/DVD, music/CD, internet, e-mail, CCTV, burglary alarm, lights, curtains, air-conditioning and surveillance of navigation systems".
Soon after, the radiation meter starts squeaking hysterically, with alarm lights flashing bright red.
