Welcome, I have aluminium and Glass tube luminaires outside. Such typical tubes. I don't want to install a standard motion sensor, but to hide something in the fixtures. And here's the problem. A PIR motion sensor bulb would not work. I read about microwaves, but once they write that they pdze...

. Photo? . And which PIR sensor did you use? . For detecting aluminium yes, but concealed in an aluminium housing it will not work. . Nothing will work through the metal part of the fixture, microwaves will work through the glass part, infrared not so much anymore.

In my opinion there will be no problems with propagation. I have (or rather had, because I converted) an led plafond with a microwave sensor. Unfortunately it was detecting movement through two walls of 24 centimetre supraconcrete. I tried covering the sensor with sheet metal and it didn't do anything. I ended up converting to continuous power.

Microwaves pass through the aluminium screen? On drywall you can throw it, but in sheet metal I somehow doubt it. A miniature PIR sensor and a hole to shoot through. Let's see what these lamps look like.

Hello, the lamp looks like this: . However, the bulb and sensor are: RICU LED and motion sensor lamp, 120°, OR-SW-7001LR3 Orno . I would prefer not to drill if the microwave sensor would pass through this glass. Added after 1 [minute]: Added after 59 : . . Added after 4 [hours] 35 [minutes]: .How about putting this microwave inside the lamp , such as this one: . would its detection range only change to the pole of the glass radius at the bottom, or would the microwaves somehow propagate sideways under the glass? I know this is an amateurish question, but I'm completely unfamiliar with it....

According to physics, a microwave wave should diffract and spread a little to the side, but to be honest I don't know

. Well me too... now I see that unfortunately...

[Solved] How to hide the motion sensor in aluminium outdoor lights?

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#1 18084538 28 Jul 2019 12:18

Jobi000 Jobi000

Level 5

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Post #1
18084538 28 Jul 2019 12:18

Welcome,

I have aluminium and Glass tube luminaires outside. Such typical tubes.
I don't want to install a standard motion sensor, but to hide "something" in the fixtures.
And here's the problem. A PIR motion sensor bulb would not work.
I read about microwaves, but once they write that they pdze through something, other times that they don't. One electrician recommended a microwave sensor for aluminium, but it's mostly written on the internet that it won't work....

Do you have any experience? Help please, as I am completely unfamiliar with it....

Thank you in advance 😀
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#2 18084675 28 Jul 2019 13:37

jdubowski jdubowski

Tube devices specialist

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Helpful post
Post #2
18084675 28 Jul 2019 13:37

Jobi000 wrote:
I have aluminium and Glass lamp fittings outside. Such typical tubes.
.

Photo?

Jobi000 wrote:
And here's the problem. The PIR motion sensor bulb did not work.
.

And which PIR sensor did you use?

Jobi000 wrote:
One electrician recommended a microwave sensor for aluminium,
.

For detecting aluminium yes, but concealed in an aluminium housing it will not work.

Jobi000 wrote:
Do you have any experience? Help please, as I am completely unfamiliar with this....
.

Nothing will work through the metal part of the fixture, microwaves will work through the glass part, infrared not so much anymore.
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#3 18084677 28 Jul 2019 13:39

wacek.wacek wacek.wacek

Level 29

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Post #3
18084677 28 Jul 2019 13:39

Microwaves pass through the aluminium screen? On drywall you can throw it, but in sheet metal I somehow doubt it. A miniature PIR sensor and a hole to shoot through. Let's see what these lamps look like.
#4 18085956 29 Jul 2019 14:41

Jobi000 Jobi000

Level 5

» | Topic author Helpful post? (0)

Post #4
18085956 29 Jul 2019 14:41

Hello,
the lamp looks like this:
.
However, the bulb and sensor are:
RICU LED and motion sensor lamp, 120°, OR-SW-7001LR3 Orno
.
I would prefer not to drill if the microwave sensor would pass through this glass.

Added after 1 [minute]:

jdubowski wrote:

Jobi000 wrote:
I have aluminium and Glass lamp fittings outside. Such typical tubes.
.

Photo?

.

Jobi000 wrote:
And here's the problem. The PIR motion sensor bulb did not work.
.

And which PIR sensor did you use?

Light with LEDs and RICU LED motion sensor, 120°, OR-SW-7001LR3 Orno:
.

Jobi000 wrote:
One electrician recommended a microwave sensor for aluminium,
.

For detecting aluminium yes, but concealed in an aluminium housing it will not work.

Jobi000 wrote:
Do you have any experience? Help please, as I am completely unfamiliar with this....
.

Nothing will work through the metal part of the fitting, through the glass part microwaves will work, infrared not so much.

Added after 59 [seconds]:

wacek.wacek wrote:
Microwaves pass through aluminium screen? On drywall you can throw but in sheet metal I somehow doubt it. A miniature PIR sensor and a hole to shoot through. Show how these lamps look.
.

.

Added after 4 [hours] 35 [minutes]: .

How about putting this microwave inside the lamp , such as this one:
.
would its detection range only change to the "pole" of the glass radius at the bottom, or would the microwaves somehow propagate sideways "under the glass"?
I know this is an amateurish question, but I'm completely unfamiliar with it....
#5 18088718 30 Jul 2019 20:06

wexors wexors

Level 19

» | Helpful post? (0)

Post #5
18088718 30 Jul 2019 20:06

According to physics, a microwave wave should diffract and spread a little to the side, but to be honest I don't know
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#6 18089199 31 Jul 2019 02:40

xury xury

Automation specialist

» | Helpful post? (+1)

Helpful post
Post #6
18089199 31 Jul 2019 02:40

In my opinion there will be no problems with propagation. I have (or rather had, because I converted) an led plafond with a microwave sensor. Unfortunately it was detecting movement through two walls of 24 centimetre supraconcrete. I tried covering the sensor with sheet metal and it didn't do anything. I ended up converting to continuous power.
ADVERTISEMENT
#7 18097102 04 Aug 2019 20:29

Jobi000 Jobi000

Level 5

» | Topic author Helpful post? (0)

Post #7
18097102 04 Aug 2019 20:29

wexors wrote:
according to what physics says the microwave wave should diffract and spread a little to the side but honestly I don't know in physics I was weak
.
Well me too... now I see that unfortunately...
#8 19428650 11 May 2021 22:08

Jobi000 Jobi000

Level 5

» | Topic author Helpful post? (0)

Post #8
19428650 11 May 2021 22:08

I found micro sensor bulbs
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Topic summary

The discussion revolves around the challenge of concealing a motion sensor within aluminium outdoor lights. The user seeks alternatives to standard PIR sensors, which are ineffective when hidden in metal fixtures. Responses indicate that while microwave sensors can potentially work through glass, their effectiveness through aluminium is debated. Some participants suggest that microwaves can diffract and spread, allowing for detection even when placed inside the lamp. However, practical experiences shared indicate that microwaves can penetrate various materials, including concrete, but may not perform reliably in all scenarios. The user expresses a preference for solutions that do not involve drilling into the fixtures.
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How to hide the motion sensor in aluminium outdoor lights?

[Solved] How to hide the motion sensor in aluminium outdoor lights?

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