Another 'Whatisit' question
Thread Starter
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Proper pointing is done at an angle.
Join Date: Sep 2015
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Run an image search for "passive air sampler" and you'll be presented with an array of different devics, some of which are a similar size and configuration to this one. By no means conclusive - there's no photo showing this particular model - but that's my latest best guess.
Join Date: Jan 2008
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Run an image search for "passive air sampler" and you'll be presented with an array of different devics, some of which are a similar size and configuration to this one. By no means conclusive - there's no photo showing this particular model - but that's my latest best guess.
Thread Starter
Join Date: Feb 2007
Location: England
Posts: 451
Thanks for the suggestion - that looks the nearest so far.
Two queries though - why the device is tucked against the wall rather than out in the air flow, and why the patch on the wall - clean? wet?
Two queries though - why the device is tucked against the wall rather than out in the air flow, and why the patch on the wall - clean? wet?
Join Date: Jan 2008
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Thread Starter
Join Date: Feb 2007
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I did image searches on Google and Bing. Lots of images but nothing quite like this. Guess this will remain one of life's mysteries.
.
Join Date: Oct 2018
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Thread Starter
Join Date: Feb 2007
Location: England
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Join Date: Jan 2008
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Ever seen CCTV camera with a large body and spyhole lens? What would be the point?
I bet that is the retaining screw to release the main body.
How would the power get to it and how would the picture get back?
I bet you a pint
I bet that is the retaining screw to release the main body.
How would the power get to it and how would the picture get back?
I bet you a pint

Join Date: Feb 2015
Location: Cincinnati, Ohio
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I spoke with the Archbishop of our Diocese today and showed him your photograph, Sallyann1234. He fell to his knees, immersed in deep prayer. When he regained some composure, he said: "This is a frommulator grammaflange with Johnson rod enhancement and cyclocentripetal hexadexaflexa couplings! If you approach the device, genuflect, speak a few words of Latin, and put $20 in the collection plate, your admission to Heav'n is assured; as you pass St. Peter on your way to the Pearly Gates, he'll refund your money and give you a winning lottery ticket!
Hope this is helpful.
- Ed
Hope this is helpful.
- Ed
Join Date: Oct 2018
Location: Uka Duka
Posts: 928
And the fact it doesn't appear to have a power supply to it.
The mystery deepens . . .
Psychophysiological entity
Join Date: Jun 2001
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The bracket was made to go on a flat wall, the device sticking out at 90°. Indeed, I think the top circle has be cut away at the back to allow this fixing.