Which smoke detector 303, 433, 915, TRX??

Forums › Gadgets, robotics, home automation, electronics (including wearables) › Which smoke detector 303, 433, 915, TRX??

AKT

335 posts

Ultimate Geek

ID Verified

Lifetime subscriber

#277281 5-Oct-2020 15:50

We have an arrowhead alarm and are looking at replacing the smoke detectors in the house. It's not practical to have them all wired but AAP do some battery ones. I have no idea what the differences are in using the various different frequencies that they have on offer or the advantage/disadvantage of using one over another. They have a TRX option too which offers two-way communication. Anyone know what we should go for or the advantage/disadvantage of each?

https://www.aap.co.nz/shop/Detectors/Smoke+%26+Heat.html

Thanks

Andy

gregmcc

2147 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2579688 5-Oct-2020 17:03

I would think that if you go for the wireless ones you would need a receiver at the alarm box, is there enough room inside the alarm box for this?

For the wired ones, from memory you need a spare zone so it can be designated a "smoke alarm" zone, do you have a spare zone?

Other than that, wired or wireless it shouldn't be a problem for a competent installer to set up

AKT

335 posts

Ultimate Geek

ID Verified

Lifetime subscriber

#2579690 5-Oct-2020 17:07

The question is which wireless one to choose, rather than is it feasible.

gregmcc

2147 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2579691 5-Oct-2020 17:12

to me they all are the same except for the frequency the operate on.

AKT

335 posts

Ultimate Geek

ID Verified

Lifetime subscriber

#2579696 5-Oct-2020 17:47

gregmcc:

to me they all are the same except for the frequency the operate on.

That was my take but thought I must be missing something. Not sure why they make so many variants.

Thanks

AKT

335 posts

Ultimate Geek

ID Verified

Lifetime subscriber

#2579697 5-Oct-2020 17:47

gregmcc:

to me they all are the same except for the frequency the operate on.

That was my take but thought I must be missing something. Not sure why they make so many variants.

Thanks

gregmcc

2147 posts

Uber Geek

ID Verified

Trusted

Lifetime subscriber

#2579699 5-Oct-2020 18:06

AKT:

gregmcc:

to me they all are the same except for the frequency the operate on.

That was my take but thought I must be missing something. Not sure why they make so many variants.

Thanks

A

They do multiple frequencies to allow for the different frequencies of the receivers, I'm guessing that the reason for the multiple frequencies would be because some other equipment on that particular frequency couldn't be used.