Are they replacing everything in the old system when it comes to the alarms?
I’m not too sure, but probably.
My school uses KAC Call Points, which os hooked up to a C-Tec Dimension panel, Apollo Discovery (smoke and heat detectors) with sounder bases with do Apollo’s “Evacuate” tone, Discovery Open-Area Sounder (with and without beacons) which do Evacuate as well and Discovery Loop-Powered Beacons.
http://www.apollo-fire.co.uk/products/range/discovery
At my high school we have multiple buildings so I’ll list the alarms per building.
Main building:
Notification:
Wheelock AS-24-110W-FR
Wheelock RSS-24-110W-FR
Wheelock MTWP-24-WM-VFR (Outdoors)
ALSO they forgot to replace a few of the horn strobes in the auditorium so
(1) Simplex 4903 9219
(2) Simplex 2901 9846 under 2901 9003 light plates
pulls:
Simplex 4251-21
Simplex 4251-20
Simplex 2099-9754
Simplex 2099-9756
Simplex 4251-113 (Cheveron)
Detectors:
Conventional TrueAlarms (Unsure of model number)
Panel:
Simplex 4005 (with 75 Zones!)
East building:
Signals:
Simplex 2901 9833, 2901 9838, and 2901 9806 horns under 2901 9003 light plates
No Detectors
Pulls:
4252-30 break glass pull stations
control panel:
Simplex 4001
Pods:
Side note: Whenever we have a fire drill, the U-MHU’s never go off but the system goes into alarm… :shock:
Notification:
Siemens U-MHU-MCS
Siemens U-MCS
Pulls:
Siemens HMS-D
Detectors:
FP-11T Smoke and heat detector
Trailers: None
One of the buildings at my university received a system upgrade during the summer. The previous setup, original from 1972, consisted of a Simplex panel (most likely a 4208) with Simplex Graphic Fire Alarm Annunciator | Picture taken in Ot… | Flickr this annunciator; the pull stations were bilingual 4251-series T-bars (some of which were older models with metal handles) and the signals were Simplex 4040 Fire Alarm Horn | Picture taken in Ottawa, Cana… | Flickr 4040 horns (along with a few Simplex 12901-9508 Fire Alarm Horn | Picture taken in Ottawa… | Flickr 12901-9508 horns added in the early '90s).
The building now has a Simplex 4100ES panel. The annunciator was replaced with a remote InfoAlarm command center, while the pull stations were replaced with bilingual 4099-9001s and the signals were replaced with TrueAlert horn/strobes.
Well anything is better than Advances then I should say am I right?
Not really… Advances were cheap, had low current draw, worked, and looked pretty clean.
Agreed. Advanced are actually pretty good alarms.
I wish other alarms were as good as them so we could have more variety.
I wish other alarms were as good as them so we could have more variety.
It’s not quality, it price. If it were quality, then we’d be seeing Simplex 5900’s all over the place.
If it were quality, then we’d be seeing Simplex 5900’s all over the place.
And yet I haven’t even seen any TrueAlert ESes IRL. Are 59ESs even out for buyers yet?
I had no idea that they were even MAKING an update from the TrueAlert. Just goes to show you how much in the loop most people are.
I had no idea that they were even MAKING an update from the TrueAlert. Just goes to show you how much in the loop most people are.
Regular ES devices are indeed out in the field; I have already seen many of them, especially around my area as well as when I was vacationing in Colorado over the summer. I’ve never seen the 5900 series (LED TrueAlertES’s) before however. Probably because the xenon option is cheaper and the ES series is more expensive than the 4906 series that is still in production, for now at least. Lots of smaller buildings use Honeywell systems though; I’ve already seen some L-series devices along with the run-of-the-mill Advances. Although Simplex is much more common in my area in general, but it really just depends on what kinds of buildings you visit in terms of what system you’ll probably see.
Regular ESes are certainly out in the field, as I have seen them in several places. Only differences from your typical TrueAlert are the “ES” labeling and flashing LED.

Regular ESes are certainly out in the field, as I have seen them in several places. Only differences from your typical TrueAlert are the “ES” labeling and flashing LED.
They have 4906’s with flashing LEDs…the addressable models do at least…

At my high school we have multiple buildings so I’ll list the alarms per building.
Main building:
Notification:
Wheelock AS-24-110W-FR
Wheelock RSS-24-110W-FR
Wheelock MTWP-24-WM-VFR (Outdoors)
ALSO they forgot to replace a few of the horn strobes in the auditorium so
(1) Simplex 4903 9219
(2) Simplex 2901 9846 under 2901 9003 light platespulls:
Simplex 4251-21
Simplex 4251-20
Simplex 2099-9754
Simplex 2099-9756
Simplex 4251-113 (Cheveron)
Detectors:
Conventional TrueAlarms (Unsure of model number)
Panel:
Simplex 4020 (Retrofitted with 75 Conventional circuits!)East building:
Signals:
Simplex 2901 9833, 2901 9838, and 2901 9806 horns under 2901 9003 light plates
No Detectors
Pulls:
4252-30 break glass pull stations
control panel:
Simplex 4001Pods:
Side note: Whenever we have a fire drill, the U-MHU’s never go off but the system goes into alarm… :shock:
Notification:
Siemens U-MHU-MCS
Siemens U-MCS
Pulls:
Siemens HMS-D
Detectors:
FP-11T Smoke and heat detectorTrailers: None

Odd alarms are 2901-9840 and 4901-9805s in place of the usual 9846s,
Misconception, the 9840 in my school is a 9845, so flush mount version of 9846.
I don’t believe that I have ever saw a 9838 horn ever replaced with a 9840 before but I can’t imagine there would be big differences besides one being curved and one having edges.
I don’t believe that I have ever saw a 9838 horn ever replaced with a 9840 before but I can’t imagine there would be big differences besides one being curved and one having edges.
They were also made in the same time frame. I mean, if all you have is a 9840 then I guess so, but those horns are all discontinued so beats me.
I’ve only ever seen 9838s in person. I’ve seen them on 4903s, 2903s and 9105s (including one in a bathroom)