====== Algo 8180 And Algo 1186 Coverage ======

The 8180 SIP Audio Alerter is a SIP compliant wall mount speaker designed for voice paging, loud ringing, and emergency/safety/security notification and alerting. The speaker is PoE and does not require an additional amplifier. Common application environments include: classroom, factory (e.g., OSHA), warehouse, utility plant, machine shop, garage, lunch room, kitchen, etc.

The 1186 is a weatherproof horn speaker for use with Algo's 8180 SIP Audio Alerter. Ideal for loud ringing, voice paging and notification alerting applications in high ambient noise or outdoor environments.

===== Coverage =====
There is no simple answer to how much area is covered by an overhead paging device but there are a few guidelines for maximum listener distance.

^ Environment                               ^ Inside dBA  ^ Effect                                                       ^  Loud Ringing                      ^^  Voice Paging                     ^^
^ :::                                       ^ :::         ^ :::                                                          ^ 8180 Only      ^ 8180 + 1186 Horn   ^ 8180 Only      ^ 8180 + 1186 Horn  ^
| Home or Quiet Warehouse                   | 50-55       | Sounds are easily heard                                      | >250m (820ft)  | Horn not required  | 64m (210ft)    | >250m (820ft)     |
| Normal Conversation, Office               | 60-65       | Voices easily understood                                     | 128m (420ft)   | >250m (820ft)      | 32m (105ft)    | 64m (210ft)       |
| Factory, Busy Restaurant, Vacuum Cleaner  | 70-75       | Voices raised                                                | 32m (105ft)    | 128m (420ft)       | 8m (26ft)      | 32m (105ft)       |
| Machine Shop, Screaming Children          | 80-90       | Conversation is difficult, hearing protection possibly worn  | 8m (26ft)      | 32m (105ft)        | 2m (6.5ft)     | 4m (13ft)         |

For 8180 at maximum volume and ambient noise measured at listener location. Voice paging distance limits assume average speech level 12dB below peak.

===== Source =====
  * http://www.algosolutions.com/pdf/8180_Coverage.pdf
  
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