Mid-Late 1990s Wheelock Fire Alarm Promotional Video 

The WTC did have wheelock alarms (rebranded by pyrotronics I think) it was MT-style speaker strobes

@@EmillioMelendez it’s hard to imagine how much destroyed those alarms are after when the world trade center collapsed

Yea but were they tamper resistant speaker strobes?

@@Kirby7601 They weren't the tamperproof models. They were Pyrotronics rebranded Wheelock E7070-LSM-24's (Pyrotronics SS70 15/75)

@@Weihuanwu oh ok

System Sensor is probably my favorite

@@captainchris2016 my favorite also

Hated these alarms and still do.

simplex and wheelock

Not since they & their parent Cooper Industries were taken over by Eaton Corporation in 2012 if you ask me; the Eluxa-series is the latest example of that.

They're loud as hell I hate them.

Good I hate them.

@@gavinproduction7433 people being taught about fire alarm systems and safety should REALLY be more prioritized. I bet hardly anyone would know how a Two stage alarm system would work, pull alarm, insert key to activate second stage, but I'm not sure how many people in buildings that have that would know it, this is just one example I thought of.

Yes, soon

@@HenBasketFireAlarms i have some vid of those but there old about 1991

@@jaylonbridges Oh? Are they any different from those that HenBasket has uploaded?

All the older style as' are syncable just dont have the bulit in code 3 option

I actually "found" it in a way: I contacted Ben Schumin, owner of The Schumin Web & semi-retired life safety enthusiast, to ask about two photos of the AS at 4:54 that he had posted in a topic of his, & he sent me links to this video & the other one that HenBasket uploaded about Wheelock's VoiceLink-series of voice panels. I'm glad that their mere existence was discovered: I love finding life safety promotional material/media/literature like this (which is very hard to find due to its nature).

I did, at least in a way: look at the replies to a comment by someone named "firealarm2903_" in this video's comments section & you'll find the full explanation.

Yes! Very Erie...

You're obviously saying that wrong. What's its being discussed is that silencing the alarm allows you to hear the message being transmitted through the radio device as loud fire alarm noises overpower what's being transmitted as it comes through the radio and makes it very hard for the person on the other end to hear because they're hearing an alarm sound through the radio speaker and one right next to them

This was an actual promo, I didn’t make this