180 Degree Internal Detector/pir -

[snowrides]

Hi Everyone, I'm trying to find an internal detector/PIR that has a 180 degree range.

Because of the irregular shape of the room I cannot put a PIR in the corner so am looking for a detector that can be put in the middle of a wall which can detect intruders both to the left and the right. All of the detectors I can find are around the 90 degree range.

Thanks in advance for all the help.

[reidy]

what about putting two back to back to cover 180 or install a 360 on the ceiling?

[PeterJames]

Hi Everyone, I'm trying to find an internal detector/PIR that has a 180 degree range.

Because of the irregular shape of the room I cannot put a PIR in the corner so am looking for a detector that can be put in the middle of a wall which can detect intruders both to the left and the right. All of the detectors I can find are around the 90 degree range.

Thanks in advance for all the help.

Hi Snowrides and welcome to the forum.

I think you may be trying to achieve something that isnt necessarily needed, why would you need blanket coverage, yes it is wise to have the alarm activate as soon as possible, but to detect every cm of a room really isnt needed.

I have a optex rx 40 in the centre of my lounge its a 90 degree detector but you cant get to anything of value without being detected.

[james.wilson]

Sensors can in theory do 180 degrees but a single element can only do so much, so you can have 180 degrees with huge gaps between, or 90

As has been said already either position for best detection, back to back or use 2 corners

[Guest Oxo]

360 masked?

360 in centre at wall, same diff.

[james.wilson]

True, didn't think of that what about a 360 mounted on the ceiling?

[Guest Oxo]

He asked for 180

[snowrides]

Thanks Everyone,

I'd already thought of a few of the ideas being suggested, but the one that I like the most is putting the 360 on the wall.

I doubt I'll need to mask it as the other beams will just be aimed at the ceiling.

I still cant believe there isn't a 180 on the market, surely I cant be the only one after this sort of thing.

[Guest Oxo]

Been asked before, not being rude by DIY. We generally never see the need.

Glad to be of help

[snowrides]

Hi Oxo,

Any suggestions as to a good 360 to put on the wall?

It's for a large kitchen diner so I'm guessing dual technology would make sense.

thanks again.

[Guest Oxo]

How big ya want it, nice Bosch could double as a wall light

[Guest Oxo]

Try that http://www.securityw...products_id=618

the other was a joke, they are big sods

Just to add, temp fix it and walk test very carefully before you fix it finally

I CANNOT STRESS enough WALK TEST before final fixing.

[arfur mo]

There will be issues covering the ceiling, so no need ti mask off.

Wise to use blue tac and test, simply because the lens is designed to look down onto not across the protected area, the pattern may not be better than 2 detectors back to back.

Crow used to make 110deg pir, very good but also ugly (as many ceiling detectors are).

You have to realise an intruder will not just enter but usually move about having done so, just be sure the more valuable items are covered.

Arfur