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That part is the beam clamp, which could be substituted with any L bracket.
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I’m afraid homedepot is localised and we can’t see in Europe the website.
voilà donc l’image, c’est un clamp avec filetage
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Dommage, la pièce est vraiment bien.
Merci pour toutes vos informations.
Il faut que je trouve l’équivalent pour la France
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un truc dans ce style
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It’s about 33". The top of the Tempest stands about 6 and a half feet from base of the mount.
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The clamp part of that beam clamp isn’t needed, I’m just using it as an L bracket. This would work just as well:
In the US those can be found at any place that sells electrical installation supplies.
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Merci beaucoup pour l’idée 
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What’s the url to it?
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Anyone try one of these yet? Think its steady enough to work?
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I have an existing flag pole. Any reason I couldn’t use something like this to mount my tempest. Two brackets and a pole about half the height up the flag pole?
I wouldn’t think the flag flying would create too much vibration. Thoughts?
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even tapping the mast might introduce false lightning (at least that was the case with previous design). So I would avoid any construction that introduces vibration, but you could always try.
Edit: false rain, of course.
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I would try that unless you require accurate rain readings in which case I would include a piece of rubber around both poles where the bracket clamps together and sand in the Tempest pole.
These comparisons are with Sky devices which do suffer more vibration issues compared to the Tempest because the Sky has less internal vibration resistance. The Tempest has an internal vibration barrier which the Sky does not.
I have a Sky on the side of a pole which would be similar vibrations with no rubber because I dont require accurate rain here:
Here the graphs showing extra rain due to vibrations during some stormy weather
This was the wind:
This was the rain recorded from a different Sky in my garden at my house a few miles away without vibrations:
This was the rain recorded on the pole with the wind sock
The total rain over that rain period was 14mm.
However there could have been more rain at the wind sock pole because it is a few miles away.
So looking at my other pole at home with a wind sock over that period was very close to actual:
And it looks like this with some timber between the pole and the Sky:
cheers Ian
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what a lovely ocean view from your garden!
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If you’ll stop using a Tesla coil to tap the pole the false lightning might stop. 
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oops 
. . . . . . . …
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Thanks for the info. If we are talking mm of nonexistent rain being detected, not sure that worries me all that much.
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Finally found a downside to my mount location. I think this is the first instance over the last 4 months, so I guess I can live with it
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Well, sorry it took so long for this comparison to play out! Historically, September is the beginning of “Indian Summer” in South Carolina. Thanks to the remnants of Tropical Depression Sally, here you go!
Storm Total Rainfall
NWS 8-INCH GAUGE = 3.81 IN.
COCORAHS 4-INCH GAUGE = 3.80 IN.
TEMPEST = 2.13 IN.
DAVIS VP2PLUS W/TIPPING SPOON = 3.94 IN.
AMBIENT WEATHER WS-2000 OSPREY = 3.72 IN.
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