Audible Alarms Specifications on GlobalSpec

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Alarm Types and Applications


	Types
	Your choices are...
	Air Horn		Air horns are operated by compressed air. They provide audible warning signals.
	Siren		A siren is a device, often electrically operated, for producing a penetrating warning sound.
	Bell		Bells are hollow metal devices that give off a reverberating sound when struck.
	Buzzer		Buzzers are electronic signaling devices that make a buzzing sound, like a low continuous humming, like that of a bee.
	Speakers		Speakers are designed to reproduce attention penetrating tones and voice commands for emergency signaling evacuation systems.
	Whoop Sounder		The alarm or indicator produces a whoop sound. These sounders may also be referred to as hooters.
	Other		Other unlisted, specialized, or proprietary audio alarm.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Audio / Visual Alarm Combination		The alarm is a combination of audio and visual signals.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Specialty Application
	Your choices are...
	Access Control / Security		Access control of security alarms are industrial alarms for risk management.
	ARINC / Avionics		The device is ARINC-rated or is designed to be used in avionic applications.
	Burglary / Theft		Alarms or systems for burglary / theft can include any combination of 24-hour, perimeter, interior detectors, or notifiers. They are triggered by sound or movement to alert of possible burglary / theft attempts.
	Computer		The device is designed to be used in computer applications.
	Fire		Audio or visual alarms or combinations are manufactured to alert people to fire.
	Machine Failure		Machine failure of diagnostic alarms alert for existing or impending machine failures or malfunctions.
	Medical		Alarms are used in medical applications, often to notify personnel of patient status.
	MIL-SPEC / Military		The device MIL-SPEC rated or is designed to be used in general military applications.
	Process Monitoring		Alarms are used for monitoring processes such as heat and temperature, power and power surge, computer systems, gas monitoring, or water level and leak monitoring.
	Power Distribution		Alarms monitor and notify of power distribution failures.
	Safety		Alarms are used for confined spaces or personal safety monitoring.
	Smoke		Smoke alarms provide alert status in the presence of smoke.
	Structural Failure		Structural failure alarms alert when allowable limits are exceeded, permitting corrective action before damage occurs.
	Vehicle Safety		Vehicle safety alarms include back-up alarms and horns, directional arrow lights and arrow boards, and strobe or flashing lights.
	Other		Other unlisted, specialized, or proprietary application.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Audio Alarm Specifications


	Sound Level		Sound level is often measured as sound intensity, which is defined as the sound power per unit area. The most common approach to sound intensity measurement is to use the decibel scale. Decibels measure the ratio of a given intensity, I, to the threshold of hearing intensity, I₀, so that this threshold takes the value 0 decibels (0 dB). Decibel output is commonly rated at 10 feet. A-weighting is often used to more closely match the measurement to the sound heard by the human ear. Some other specialized weighting modes are B, C, D, and G.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Operating Voltage		Operating voltage refers to the range that the device can be operated.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Operating Frequency		This is the frequency (pitch) at which the alarm produces sounds.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Tone
	Your choices are...
	Continuous		The tone of the alarm is continuous.
	Intermittent		The tone of the alarm is pulsed (intermittent) or non-continuous.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Power Source
	Your choices are...
	AC Voltage		The voltage supply is AC.
	DC / Battery		The voltage supply is external DC.
	Compressed Air		The alarm is powered by compressed air. Air horns are a common alarm type that uses compressed air.
	Manual Operation		The alarm is operated only by manual operation, such as a crank or push-button.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Physical Specifications


	Mounting		Manufacturers use many of these terms interchangeably. Keeping this in mind, we have delineated the options as follows to help you locate the ideal item(s) for your needs.
	Your choices are...
	Adhesive / Magnetic Base		The device has a self-adhesive or magnetic base. It is designed to be glued / adhered to surface.
	Chassis / Rack / DIN Rail		Chassis mount devices can be attached to, or within, the supporting frame of a structure (chassis), exclusive of the body or housing. Some chassis varieties can be mounted within a rack. Rack mount units can be mounted directly into a rack. They come equipped with the necessary rail guides, flanges, or tabs to be mounted in this fashion. The standard 19" rack is typical of this style. DIN rail devices can be mounted on a standard DIN rail.
	Flange Mount		The device is equipped with integral flanges so that it can be mounted with the use of external hardware (screws, bolts, rails, etc.).
	Stand Alone / Freestanding		Stand alone devices do not need to be mounted; they can stand on its own.
	Handheld / Portable		Handheld or portable devices are designed to be moved freely; they are not meant to be bolted or hardwired in place. This style can include items with wheels, briefcase, laptop style, or handheld products.
	Flush Mount		The device can be placed into, or through, a depression within an existing panel so that it's face is flush, or nearly flush, with the panel, wall, or ceiling. The method of attachment may include screws, bolts, rails, flanges, etc.
	Pole Mount		The alarm is supplied with brackets for installation on a vertical pole.
	Other		Other unlisted, specialized, or proprietary configuration.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Features
	Your choices are...
	Acknowledge / Silence		The "acknowledge" feature allows the operator to mute the audible alarm while maintaining some visual alarm indication.
	Battery Back-up		The unit has back-up batteries in case of power failure.
	Explosion Proof		Explosion-proof devices have totally enclosed housings that are constructed to withstand internal explosion of a specified gas, vapor or dust. If an explosion occured, the enclosure would prevent the ignition or explosion of the gas or vapor surrounding the motor enclosure. Underwriters Laboratories (UL) governs several explosion-proof ratings.
	Intrinsically Safe		Intrinsically safe (IS) is an adjective for equipment and wiring that is incapable of releasing sufficient electrical or thermal energy under normal or abnormal conditions to cause ignition of a specific hazardous atmospheric mixture in its most ignited concentration. The IS terminations and wiring may be brought into any hazardous location of any group classification for which it is accepted without requiring explosion proof housing or other means of protection.
	Outdoor Rated / Weatherproof		The device is designed to function normally in an outdoor environment. It is, to varying degrees, sunlight, water, temperature, frost and ice, etc., resistant.
	Submersible		Submersible devices are designed to function optimally while underwater.
	Synchronization		The alarm, annunciator, provides built-in synchronization of audible signals or strobes. NFPA 72 requires visual appliances to flash in synchronization in rooms or areas where there are two or more visual devices that are not a minimum of 55 feet apart. NFPA 72 requires that fire alarm signals be distinctive in sound from other signals and used for that purpose only. This is known as the three-pulse temporal pattern.
	Voice Evacuation		Voice evacuation alarms are manual or automatic supervised paging systems used to transmit a voice message (such as information, instruction, direction) on a selective and all-call basis.
	Volume Control Option		The alarm contains an adjustable volume control.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Agency Approvals



	Your choices are...
	RoHS Compliant		Restriction of Hazardous Substances (RoHS) is a European Union (EU) directive that requires all manufacturers of electronic and electrical equipment sold in Europe to demonstrate that their products contain only minimal levels of the following hazardous substances: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyl and polybrominated diphenyl ether. RoHS will become effective on July 1, 2006.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Audible Alarms Specifications

Types:

Audio / Visual Alarm Combination?

Specialty Application:

Sound Level:

Operating Voltage:

Operating Frequency:

Tone:

Power Source:

Mounting:

Features:

Agency Approvals:

Help with Audible Alarms specifications: