Why doesn't Sentry make rotating sirens anymore

[Snowcube]

Sentry sold the Defender up until around 2010. The reason they are so rare is because they never pushed them like Federal does with the 2001. Instead they push their omni sirens. The reason there aren't as many sentries around is because a 2001-130 costs as much as a 20v2t but a 20v2t is only like 3/4 of the db of the 2001 and to about 99% of EM management, they just buy the loudest and cheapest siren there is before even considering how effective the siren is going to be (the newer 2001s don't carry as far as the old ones because of their ridiculously high pitch). Sentry's sirens are very efficient, and the Defender from what I hear was only in the quad-digits range in price yet managed to be as loud as a T-128 not to mention it was very compact. It's design wasnt even very efficient. If Sentry started experimenting with rotating sirens they could probably blow away all competition. The reason they don't want to make rotating sirens is because of how prone to failure rotators are, but they could probably design a very reliable rotation system. (after all, the 3v8-h-b manages to put out as much sound as a Banshee but is only 4 HP, so they could probably come up with a very simple and reliable rotator.) I know that they are trying to be successful by making nothing but omni sirens, but it would be nice if they would start experimenting with rotating sirens. I have a very simple design in mind for a few rotating sirens (the models would be 3v-r, 10v-r, and 14v-r) which have a horn similar to the 508's. They could probably be very loud and effective (especially the 14v-r which is a rotating 14v). So my point is, Sentry has designed very effective and efficient omni directional sirens, so why don't they try making rotating sirens again?

[4J25]

The Defender was not an efficient nor reliable siren. There's a reason they haven't made a rotating siren since. They really push the omnidirectional siren ideal.

[Stormsetter4]

(the newer 2001s don't carry as far as the old ones because of their ridiculously high pitch).

This is not true. I've seen older 2001-SRN's with the rounded back that are as high pitched as a 2001-130. It depends on the battery voltage or the tap on the rectifier.

Case in point:
First Generation 2001-SRN


https://www.youtube.com/watch?v=u4RQo_NAG3c

2001-130:


https://www.youtube.com/watch?v=2bAK_ILo6zs


The reason Sentry does not make a rotating siren is that it's not in their best interests. They do fine already with their omnidirectional market, no reason for them to make a rotating siren.

[DJ2226]

You'd have to hear just how loud big omnidirectional sirens can get to understand. In short they don't need them. 16V1T-Bs are already very loud sirens, comparable to a Thunderbolt or T-128 and can achieve about the same range. I'm sure the 14V is not too far off, and the 40V1T-B will be on another level... that is if they can ever get them to the market... Price wise the sirens are very competitive actually. Their DC sirens are priced about the same as the competitors' products, and their AC products are even more affordable. Obviously Sentry's AC sirens can't be converted over to DC like a 2001 or T-128, but they are not bad at all. The price to performance ratio on them is pretty darn good considering that they provide constant SPL in all directions.

As for the Defender, it wasn't quite near a T-128 in terms of output. Sentry never utilized any of the amplification techniques of the competition such as the designs seen in the 2001/Equinox, 508, RM-130, etc. or even the extra breathing room of the 500 series or smooth curved insides of the P-15 and P-50. The sound comes out of the chopper and rams into the projector, so it really can't make it that far out of the horn. It would be like mounting 4 400 watt Whelen drivers inside of a garbage can and expecting it to perform as well as the Vortex. Overall its SPL was around the same as the 7V8. Things might have gone differently if they would have put more time into designing a better shroud for it, but that probably would have caused the prices to skyrocket. It costs a lot of money to fund R&D for projects like that, and I'm pretty sure Sentry can't sling their wallets into the monitor, yell "WORK", and in a puff of magic smokes appears a new siren... I mean, it'd be cool if they could though. lol The other manufacturers can probably wrangle the magical DC pixies in the motors and 1s and 0s in the controllers, do disappearing acts, and pull rabbits out of hats all day long with the amount of money they have and be able to mitigate some of the costs.

[Ziginox]

I'm not really sure where the Defender even came from, but Sentry has always advertised their omnidirectional sirens as being superior to rotating sirens for reasons of maintenance and steady coverage. The Defender clearly went against that, and it sold poorly. It makes me wonder if it was a custom order or some pet project.

[DJ2226]

I'm not really sure where the Defender even came from, but Sentry has always advertised their omnidirectional sirens as being superior to rotating sirens for reasons of maintenance and steady coverage. The Defender clearly went against that, and it sold poorly. It makes me wonder if it was a custom order or some pet project.

I always got mixed messages from what their goal was. At first it seemed like a siren geared towards customers that wanted a rotating siren and wouldn't accept the idea that the omnis were better. They also seemed to be more of a budget friendly siren considering that most, if not all, of the Defenders in the wild are DC only without a rectifier, however they may not have come with the option back then. Going by the old site it apparently was marketed as the 40V2T's battery powered equivalent with both being rated at 127 dB at 100', which makes sense for the 40V but definitely not the Defender as it was more on par with the 7V8-B.