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Siap Hygrothermograph - 1930s - Italy

Lot reference 18371623

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Current bid $29
Next minimum bid $35
Auction fee: 9% of the winning bid
Shipping to United States: $129.47

No bids placed.

$29 Bidder 6436
20-05-2018 23:58:45
$23 Bidder 0348
20-05-2018 11:49:03
$17 Bidder 7204
14-05-2018 15:37:48
$11 Bidder 1697
12-05-2018 09:43:42
$9 Bidder 7204
11-05-2018 21:13:58
$6 Bidder 6931
11-05-2018 20:28:00

In excellent condition

Technical description:

It consists of a thermal imager and a hygrograph. The temperature sensitive element is a bimetallic strip ring whose operational characteristics are a low coefficient of delay and resistance to environment. This device controls through appropriate levers a stylus. It is adjustable with a screw and is protected against accidental knocks. The hygrometer has a sensor element consisting of a hair bundle that, depending on the relative humidity varies in length. The change commands, through a system of levers, another stylus. The device has a protection for the hair bundle, a cylindrical cage that slides for maintenance.
The drum contains the clock components, to be charged weekly. Case in painted metal with 2 lights (with glass), with handle on the top of the instrument, it’s hinged on the frame, allowing the extraction of the drum to change the plotted sheet and to charge the clock spring that’s contained in it.
Diagramming paper areas show respectively, below the temperature in centigrade degrees, and on top values of relative humidity. The temperature range is -15 +45° C; the humidity range is: 0 – 100 %

Manufacturer: SIAP, Bologna.
Manufacturing year: 1930s
Parts or accessories: chart sheet in support
Overall size: H x L x D (cm): 28 x 34 x 13
Other measurements: cylinder length 23 cm

The tool records simultaneously the temperature and humidity of the air on the same parallel chart sheet of paper, allowing a direct comparison between these two meteorological parameters.

The same model is exhibited at the Rome Museum INGV National Institute of geophysics and volcanology.

The photos are an integral part of the description.
Shipping via express courier.
Happy bidding!

It iuri75  top

Feedback score: 100%
Reviews given: 90
Member since: April 11, 2016
  • Lovely, as described. Packed well. Arrived safely.

    Tomppaseni May 19, 2018

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    Oggetto corrispondente alla descrizione. Spedizione rapida e imballaggio curato. Tutto professionale.
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    beatoarcangelo May 4, 2018

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    Very nice seller, beautiful item as described, fast shipment! Recommended!
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    HPieroni April 25, 2018

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    joostanna1 April 18, 2018

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    Big seller!
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    eliseo45 April 14, 2018

View all 90 reviews


The seller will ship the item(s) within 3 working days after receiving confirmation of payment.

Shipping costs are for mainland destinations only.
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Shipping costs

United States $129.47
Italy $29.70
Rest of Europe $43.95
Anywhere else $129.47

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You can pick up this lot from the seller: Sassari (italia/sassari/sardegna), Italy.

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