Burglar Alarm Sirens Guide

By Ari Erenthal, Published on Mar 27, 2017

Sirens are used to alert users to an alarm condition. In this note, we examine how to choose, locate, and install alarm sirens, including

  • Siren versus speaker
  • Form factors - surface mount, flush mount, horns, self contained sirens, armored sirens
  • Acoustics
  • Notification placement
  • Power
  • Siren tones
  • Siren drivers
  • Bell supervision

Sirens ****** ********

* ******* ** * device **** ********** * sound when ** ** ******** with *****. 

  • ******* ** **** ********* ***** and ******
  • ******* ***** *************
  • *******
  • **** *********
  • *** ** ****
  • ******** ***** ***** *******

* ***** ** * device **** ******** *** own ******, ******* **** a ***** ** ***** driver. 

  • ** **** ******* ** one ** *** *****
  • ********** **** ***** *****
  • ******
  • **** *********
  • ******
  • **** *** ******* ***** driver

**** **** *** ***** ******** ***** to *** *** ***** 'siren', '*******', '****', *** 'sounder' ***************.

Siren **** *******

****** *** ******** **** come ** ************ *** non ************ **** *******. Sirens intended *** ****** *** are ***** ******* *** quieter. 

******

****** ****** **** ** surface ***** *** ***** mount. ********** **** ** prefer *** ******* *****, because **** *** **** easier *** **** ****** to *******. *********** ********* often ****** ********** ******, because **** *** **** obtrusive. ********** **** ******* *********** on ***** *** **** to ***** ***** ***** sirens ** ***** *********** customers ** * *** of *************** ********** **** lower **** ************ *********. Commercial ********* *** ***** content ** **** * surface ***** *****.

******* ***** ****** *** be ********* ******* *** easily. ***** ****** ********* have * ********* **** a ******** *** * wire ** *** *****. A ********** ****** ****** a **** *** *** speaker ****, ****** *** hole **** *** *********, makes *** ***********, **** the ******* ** *** backplate, *** ******* ** with * ********. **** mounting *** *********, *********** should ** **** **** to ***** ** *** close ** *** *******, as ******* ***** ****** ******** clip ** **** *** top. 

******* ***** ****** ****** not ** ******* ** humid ** **** ******** environments. 

********** ****** *** ******* to ******* ***** ******, except **** **** * grill ******* **** *** speaker ******* ** * plastic ******* ******** *** entire ********. ******* ** a *********, *********** *** a **** ** *** drywall ** *********** *** speaker. *** ********* **** commonly **** **** ***** holes, ***** *** **** covered ** * **** plate.

********** ****** *** *********** to ******* ******* *** hole **** ** *** precisely, *** ******* ** the ***** ** ******* crooked, it ****** ** ************ afterwards. *******, ** ******** installed, ** ** *** less ********* **** * surface ***** *******.

*******

******* ****** **** ** horn, **** *********, *** armored:

  • ***** ****** ** **** to ********* **** * large ****, ** **** the ******* ***** ** be *********.
  • **** ********* ****** ****** be **** **** ********** the ***** *** ** the ******, ** ***** circumstances **** ***** ********* possible.
  • ******* ****** ****** ** used **** ******* ********* is ******, ** ***** insect *********** ** ********.

***** ***** *** * very ******** ****** ** installers, *** ** ***** ease *** *********** ** installation *** ***** **** tones. *** ****** **** shape ** *** **** allows ** ** **** sound ***** *** ** a **** ***, ******** this ***** ** ******* to ***** * **** large ****. ****** ******* (PA) ******* ******** *** horns, ** ** ********** systems. ********** ******** *** horns ** ***** *****, open *****, **** ** warehouses. **** ***** ***** are ******* *****. 

**** ********** ****** ** homes **** ********** ******, installers ********* ***** *** **** inside *** *****, **** the ****, ****** ********, so **** *** **** can ** ***** *******. It *** ** *********** to ***** * ***** to vinyl ** **** ******* siding, ** **** ****** can ******** ************. **** jurisdictions **** ***** ********** which ****** ****** ** the ******* ** *****, and ******** * ***** in ** ***** **** the **** *** ** the **** *** ** broadcast * ***** ***** outside *** ****. 

**** ********* ****** *** horn ****** **** **** pre ******* ** * stainless ***** ***. ********** commonly ****** ***** **** the ***** **** ** installed close ** *** ******, making ********* * *******. They *** ********** *********** and ******* * *******, making **** ****** ** install. 

**** **** ********* ****** include * ****** ******, which **** ***** *** alarm ** **** ** an ********* ***** ** open *** *** ** order ** ******* *** siren. **** **** ********* ****** include *** ****** ********, one *** *** ***** and ******* *** *** back, ***** **** **** if ** ********* ***** to *** *** ***** off *** ****. **** using * ***** **** a ******, ********** **** run *** ****-**** *** the ***** *** ******* for *** ****** ****** zone. 

**** ********** ****** ** program tamper ******** ** ** 24-hour *****. ** **** zones *** ***** **** send ** ***** ****** and ******* *** ***** even **** *** ***** is ********. ** *** tamper ** ** * 24-hour ****, ********** ****** document this, ****** ** * note ****** *** *****, on *** **** ***, or ******* ** *** inside **** ** *** *****. Otherwise, * ********** ********* the ****** **** *** know ** ******* *** zone *** *** *** panel ** ****. ** a ********** ***** ** service *** ***** ******* disabling *** ** **** zone, *** ***** **** blast **** ** *** face ** **** ** they **** ** **, which *** ******* **** into ******* *** *** ladder.  

*** ********* ********* ***** shows *** ************ ** a **** ********* *****, and *** **** ** stands ** ** *********: 

** ******* **** ** a ***** **** ** vandal *** ****** ********* without ******* * ***. It ** **** ****** to ****** **** * self ********* *****. ** is **** **** **** likely ** ******* ******* as ***** ** ** place *** **** ** make * ****. ***** sirens *** ************* ******* than **** ********* ******, and *** ********* **** more ********* ** *******. Armored ****** ********* ******* a **** ******, ** detect ******, *** *** a ***** ******. ********** commonly ****** ******* ****** for ********* ***** ********* and ********** ******* *** to ** ********. ******* sirens ****** ******* ** ******* to *****, ******, ** cinderblock *****, ** ***** walls *** ******* *** weight ** ** ******* siren **** ******. 

*********

****** ****** ** ******* throughout *** ****** ******** being *********, ** ***** to ***** *** ********* to ** ***** *****. The ******** *********** **** affect *** *** *** way *** ***** **** from *** ***** *******, which **** ****** *** far **** *** ***** can ** *****. *** amount, ****, *** **** shape ** *** ***** will affect ***** *************. 

Sound ********* *********

**** ********* **** ****** sound, ********** *** ******** at ***** *** ***** is *********. ****** ********* that ****** ***** *******:

  • ******
  • ****** *******
  • ******* *****
  • ****
  • **********
  • ******* ********
  • ********** **** **********
  • *** ********

Sound ********** *********

***** ********* **** ******* sound, *********** *** ******** at ***** *** ***** is effective. ****** ********* **** ******* ***** include:

  • ******
  • *********
  • *****
  • ******
  • ********* 
  • *******

Siren *********

****** **** *** ****** to ** **** **** they *** ** ******* heard ********** *** *****. Sirens **** ** ******* in ******** **** **** the ***** ******. 

****** ***** **** **** ceilings ****** *** ********* echoey. * ****** ***** mounted ***** ***** ********* ** heard ********** *** ***** and ****** *****, ****** the **** ** ********** separate ****** *** **** floors. 

** *** ***** ***** without **** ********, *** same ****** *** ** achieved ** ******** *** ceiling ** *** ********* near *** *******.

********** ********* ***** ****** inside ******** *******, ******* they *** ****** **********, customers ** *** ******* technicians **** *** ***** inside ***** **** ******* in *******, *** ******* customers ****** ** *** look ** ****** ******** in ***** *****. *******, an ******** ****** ** ********* the **** ********* **** ** the *****, ********** ******** to ******* *** ***** and ****** ******** ** vehicles **** ******** *** rest ** *** ****. Therefore, *** ****** ** sirens ** *** ****** often **** * ********* time *********** *** **** of *** ****. 

 

Siren *****

**** ************* ******* ** least *** ********* ***** of ***** *****. **** allows users ** *********** ******* ** intrusion *****, ****** ***** they ****** ****** **** or ****, *** * fire *****, ****** ***** **** should ******** *** ********. 

**** ** ****** ***** demonstrates * ****** **** of ***-**** *****. *** first **** ** ************, *** ** ******** used *** *********. *** second **** ** ************, *** ** ******** used *** **********, **** as ***** *** ****** dioxide. ****** ***** *** volume ** **** ******** or ********** ****** ******** play. 

 

*** ********** ** ** listed **** ******, **** jurisdictions ******* ********** ************ be * ******** **** known ** *-*, ******** 3, ** **** *. Depending ** *** ************* of *** ***, **** local *** *** ****** on ****** ******** ****** capable ** ********** *-* tones.

**** ***** ***** ************ a ********** **** ***** listed ***** ********** *** T-3 ****. **** ***** has ** ********** ******, so *** ******* ** you *** ********* ** sudden ***** *******. ****** lower *** ****** ** your ******** ** ********** before ******** ****.

***** 

*** *** **** ******* used ** **** ***** performance *** ******** *** watts. *** ***** **** metrics **** ** ****** siren ******* ****** ****** is *******, *******, *** resistance. 

********, ** **, ** a ******* ** ********. Normal conversation ** ******* ***** 60dB. ******* ******** ** your *** ** ***** 110dB, ***** ** **** most ****** ***** ****** are ***** **. * **** increase **** ****** *** sound ******. 

******* ***** *********** ** measured ** *****, ** W. **** ** *** much ***** *** ******* requires ** *** ** order ** ****** **** volume. ** ***** *****, a ***** ***** ******* will **** ****** ***** if ***** ***. *** less *****, *** ***** the ****** ** *** speaker. *** **** *****, the ****** *** *******.  

******** **** **** *** wattage *******: *******, ***** is *** ******* *** speaker *** *** ** long **** ******* ********** damage, *** ****, ***** is *** ******* ******* the ******* *** ****** without ******* ***. ***** exceed *** **** ******* by ************ *** *******. If * ****** **** is ********, ******* *** speaker. ********, *** ******* rating ** *** **** power *** ******* *** handle, *** *** **** power ** **** ******!  

Siren *******

**** ***********, ** ** **** necessary *** *** ***** panel ** ****** *** proper ******* ** *** total ****** ** ***** current. **** ** ******* a ***** *** ********* inside **** ******* *** required tone.

**** ***** ********, ** is ********* ** *** a *****, ****** * siren ******, **** ** power *** ******* *** to ****** *** **** of ***** ********. ***** boards *** ******* ** the ***** ****** ******** by *** ***** *****. Some ***** ****** **** built-in ***** *******, ******** installers ** *** ****** sirens ** ******** *** a ********** ***, ********* on ************. 

****** *** ******** **** list *** ******* ***********, which ** *** ******** at ***** *** *********** flows. ** ** ***** in*****, ***** **** *** symbol *. **** ****** and ******** *** ***** between ** ** ***.

****** *** ******** **** list ******* ***********, ***** is *** **** ** ***** the *********** *****. ******* is ***** ********* ** ****, ***** **** *** symbol *. **** *** split **** ***********, ***** uses *** ****** **, or *********. **** ******** ******* **** to ***** ******** ** an *** ** ***- that **, ***** ** 750mA. ****** ******* **** more *******, ***** **** **** 1A.  

********** ** ******** **** reduces *******, ***** ** to ***, ***** *** pressure ** ***** *********** flows. ********** ** ******** in****, ***** **** *** symbol Ω. ******** *** sirens *** * ******* amount ** ********** ** the *******, ***** ******* the ****** ** ******* available ** **. *Ω and *Ω ******* *** the **** ******. 

******* ******** *** ********* cheaper, *** ******* **** draw ************* **** ******* than ******, ** ** often ******* ** *** speakers **** * *** calls *** ******** *****, either *** ** *** size ** *** ********* area ** ******* ** background ***** **** *********. Siren ******* *** ********* very *** ****, ***** available *** ~$** *** or ****. *******, ****** are ********* **** ******** and ********* ******.  

Siren ******

**** ********** ******** ****** or ******** ** ** alarm, ********** **** ********* the ******** ******* (*** sirens) ** ********. ****** only ****** * ******** amount of ***** *** ******, which **** ** ****** among *** *** ******. Siren ******* **** ****** a ******** ****** ** current, *** ***** ******* on *** ******* **** more **********. 

** *** ***** ****** of ********** ***** ********* by *** ******** ******* the ******* ****** ********* ** the ******, *** ******* must ** ******** ** such * *** ** to ****** **** **********. When wiring ******* ** ******, with ***** ****** ***** individually connected ** *** *** line, ***** ****** **** its ********** ** *** line. **** ****** ** parallel, *******, ***** ****** lowers *** ****** ** total **********. **** ** because ******** **** **** pathways *** *** ******* to **** ***** ****** those ******** *******, ***** series ******* *** ******** available ***** ****** **** longer.  

Bell ***********

******* ****** *** ***** mounted outside *** ********, ********* often ******* ** ********** them ****** ********** ** gain ***** ** *** protected ****. ***** **** sirens *** ****** ******** to ****** ** ****** them *** ** ***** tamper ********, ** ** recommended ** ******* *** wire ** ****. ***** ****** are ******* ** ********* the ****** ** ********** in * ********** *******. By ******** **** ***** is * ******** ****** of ********** ** * circuit, *** ***** *** be ********** ** **** a "*******" ****** ** the **** ** ******* or ***. ***** **** ****** allow *** ********** ** disable *** **** *********** feature, ** ** **** practice ** *** **. 

**** ***** *********** ******* bell *********** ******* ******** supervision ******** *********** ********* and **** ***** ************. To ********, *********** ******** the ********** ** ****** resistance ** *** *******. To ** ****, ** EOL (***-**-****) ******** **** be *************** *** ****** *** **** *******. Figuring *** ***** *******, exactly, ** ** *** end ** *** **** is *** **** *********. Technicians ****** ** **** to ******** ***** ******* is *** *** ** the ****. ** **** was *** **********, ***** a ********** ** ******* the ********** ** *** siren ***** *** ******* help *********** ******** * wiring ***.

**** ****** ****** ** parallel, **** *********** ****** be **** ** *** splices *** ***** ** be **** ** *** alarm *****, ** ***** is ** "*** ** the ****". *********, ****** should ****** ** ***** in * ***** ***** pattern, **** ** *** sirens **** ********** ** wired ** ** ********.  

Comments (4)

One thing to add (I may have missed it) is that if you want to sync all of your sounders you would need to use speakers with a siren driver.  I haven't read anything that required the intrusion to sync but have had customers request it after they heard two sirens going off in a home.

Good point, UD1! Syncing usually isn't required for intrusion (unlike for fire, where it is), but if you do need/want to sync, you have to do with with a siren driver. 

Of course there are digital "bus / network" sirens. These use RS485 to communicate. Risco and Orisec use this to effect as do some others :)

Thanks, Paul. I just checked it out. Seems like a real unique product concept. I'll have to learn more. 

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