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What element is used to make light sensitive photocells electric eyes and fire alarms?
Wiki User
∙ 10y ago
Selenium
Wiki User
∙ 10y ago
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What element is used to make light sensitive photo cells for camera electric eyes and fire alarms?
It used to be Selenium, but modern photocells use silicon (Si).
Which car alarms are the most sensitive?
The most sensitive to touch car alarms are Viper, Ultra Star, Prestige, and Code Alarm.
What kind of products does BRK produce?
The company, BRK produces electronic safety devices. BRK produces smoke alarms, battery and electric smoke alarms, plug in alarms and fire extinguishers.
How many types of smoke alarms can you get?
There are many types of smoke DETECTORS and self-contained smoke ALARMS. Some smoke detectors use ionizing radiation; others use photo-electric sensors. More sophisticated sensors use chemical reactions to detect specific types of smoke or to measure specific chemical composition and concentration of smoke. Photo-electric sensors are said to be more sensitive to smoldering fires (large particles) than ionizing detectors, meaning you may get an earlier warning from photo-electric.
How sensitive are car alarms to wide animals and pets?
Car alarms are most often triggered by accident. Depending on the sensitivity of the car alarm and if it includes an optional sensors, a pet or wild animal could set off an alarm. Sometimes even bugs can set off car alarms.
Why do dogs hate alarms?
The noise is too high pitched and loud, their ears are much more sensitive than ours and it can damage them.
When was the electric eye invented?
The "electric eye" (photoelectric switch, photosensor) was invented in the 1920's and used for various purposes such as counting vehicles at toll booths and for burglar alarms.
What element used in fire alarms?
alot and i mean alot of americium and iron and metal for the sound too just to help out
What are the best alarms out on the market right now?
home alarms? car alarms? what?
Who invented the fire alarms?
The first automatic electric fire alarm was invented in 1890 by Francis Robbins Upton none of yur business
What different types of alarms do Clifford Car Alarms sell?
Clifford Car Alarms sell a variety of car alarms. From car alarms with remote control to car alarms that can withstand heat and cold with good security included.
What kind of particles does the emitter create in a smoke alarm?
Smoke alarms typically use photo-electric sensors or alpha-particle emitters, although the photo-electric sensors are much better for detecting smoldering fires.
