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Malsua

What is this?

By Malsua, in General Discussion

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Malsua    1,422

Malsua
Posted

I found this one one of the outbuildings on my company's property.

 

I didn't get a chance to ask the property manager what it is.

 

It looks like some kind of laser target or something.

 

It is at a funny angle and there is no corresponding something aimed at it.

 

There appears to be no batteries or wiring, so whatever it is, it's 100% passive.

 

It does "point" at another high security company near us and it is in the alley between the two properties.  There is a 12 foot razor wire fence on their side though.   It looks like some kind of vehicle sensor to me and I think it's new.

 

Thoughts?

 

whatisit.jpg

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JohnnyB    4,326

JohnnyB
Posted

Definitely part of an alarm system. It is a mirror to re-aim a laser light to cover an area. We used to call them "Beams" in alarm lingo.

If it is pointing at nothing and nothing is pointing at it. It is simply a relic of an old alarm system my friend.

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Malsua    1,422

Malsua
Posted

Definitely part of an alarm system. It is a mirror to re-aim a laser light to cover an area. We used to call them "Beams" in alarm lingo.

If it is pointing at nothing and nothing is pointing at it. It is simply a relic of an old alarm system my friend.

 

Figured as much.  Thanks.

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bhunted    887

bhunted
Posted

I think its an Infra red deflector. I have a real antique one here somewhere. You can see the multiple facets if you look close. Most likely for an electric eye or something. Haven't seen one in decades.

 

 

Sent from my iPad using Tapatalk Pro

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Malsua    1,422

Malsua
Posted

I think its an Infra red deflector. I have a real antique one here somewhere. You can see the multiple facets if you look close. Most likely for an electric eye or something. Haven't seen one in decades.

 

 

Sent from my iPad using Tapatalk Pro

 

If I run into the facilities manager tomorrow, I'll ask.   It's just in a weird place is all.

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bhunted    887

bhunted
Posted

If I run into the facilities manager tomorrow, I'll ask. It's just in a weird place is all.

If it has multiple mirrors in it, its wide range. They might be using it for something else. Like ring a bell when beam is broken. One way or another, it may not be for a narrow beam.

 

Now ya got me wondering where mine is. Hmmm....[emoji848]

 

 

Sent from my iPad using Tapatalk Pro

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Malsua    1,422

Malsua
Posted

Ah hah!

 

It's a Surveying Prism.

 

http://www.berntsen.com/Surveying/Survey-Prisms/Mini-Prisms/ctl/ViewProduct/mid/1600/itemID/1609

 

I did talk to the facilities manager and found out that when the thorium cleanup was occurring 8-10 years ago, they installed that on the building as a reference point.

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bhunted    887

bhunted
Posted

Ah hah!

 

It's a Surveying Prism.

 

http://www.berntsen.com/Surveying/Survey-Prisms/Mini-Prisms/ctl/ViewProduct/mid/1600/itemID/1609

 

I did talk to the facilities manager and found out that when the thorium cleanup was occurring 8-10 years ago, they installed that on the building as a reference point.

Kewl. Guess it has multiple uses. Now you really got me wondering where mine is.

 

 

Sent from my iPad using Tapatalk Pro

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