Horizontal orientated PIR sensor

[Noelep50]

My googling has let me down on this one. The motion sensors in our home (c. 1988) are recessed into what look to be standard sized 1 gang openings - but are orientated horizontally.

i havent been able to find any suitable replacements for these that will fit in the same openings; everything seems to be either vertical or surface mounted?

Pictures of the sensor in place, and the faceplate attached.

Any help appreciated - FWIW these are connected to an Elk M1 Gold.

 

[Noelep50]

Faceplate

 

[pete_c]

I have not seen those.  In the 1980's in my parents home they had large in wall PIRs with shades on them to hide them.
 
Just use a blank faceplate and carefully mount  a PIR on it vertically and drill a small hole in it to pass the wires.
 
Or if the box under the PIR is just surface mounted and you have some touch up paint put a piece of dry wall in the removed surface mounted box with a small hole in it to pass the wires.  Once dry you can just mount the PIR to the repaired wall.  It will look nicer this way.

 

[Noelep50]

Thanks for the feedback. They do work fine - it’s the yellowed plastic that is the problem. Maybe I can carefully mask and spray them white...

Patching and surface mounting would be last resort - having them recessed is nice and clean.

I have now found this

https://www.alldataresource.com/Visonic-MR-4000-Flush-Mount-PIR-Motion-Sensor-_p_101378.html

Looks like it might be able to mount horizontally but no way to know without just buying one...

 

[RAL]

Thanks for the feedback. They do work fine - it’s the yellowed plastic that is the problem. Maybe I can carefully mask and spray them white...

Patching and surface mounting would be last resort - having them recessed is nice and clean.

I have now found this

https://www.alldataresource.com/Visonic-MR-4000-Flush-Mount-PIR-Motion-Sensor-_p_101378.html

Looks like it might be able to mount horizontally but no way to know without just buying one...

 
The Visonic MR4000 has to be mounted vertically.  There is a MR4000R for horizontal mounting.
 
Visonic stuff is difficult to find these days.  A quick google search doesn't turn up anyone selling the MR4000R.