Fratelli Magni Thermometers and Manometers
Fratelli Magni Thermometers and Manometers
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  bimetal thermometers
  bimetal thermometers -
stainless steel
  inert gas thermometers
  inert gas thermometers -
stainless steel
  manometers - hydrometers
  manometers -
stainless steel
  special manometers
  pressure loggers
temperature loggers
stainless steel inert gas thermometers

stainless steel inert gas thermometers

inert gas thermometersIndustrial thermometers manufactured entirely in stainless steel specially designed for heavy duty use and suitable for the food, chemical, pharmaceutical and dairy industries and wherever the use of stainless steel in required.

The inert gas we use (nitrogen) is neither toxic nor a polutant. These thermometers are safe and give higher technical performance (precision and speed of response) superior to previous mercury based models.

We produce a large range of thermometers with models suitable for any application;

models: back mounted, radial, flanged, local or remote installation.
temperature range: -40°/+40° to 0°/+500°
temperature creep: 0.05% per °C for variations in ambient temp. between -20°C/+60°C
precision: class 1 as per EN 13190
dimensions: DN32 - DN150
casing & bayonet: AISI 304
pin & connection to process: AISI 316
capillary bulb : AISI 316
spiral thermometer spring: CrMo 52 steel
welds: AISI 316 TIG Argonarc
dial: white aluminium with scale in black
hand : black oxidised aluminium with micrometric reset
dial cover : glass
seal: neoprene
protection: IP55 as per CEI EN 60529


electrical contacts

Electrical contacts - Download BrochureThese are devices that can open or close an electric circuit. They are constructed using movable contacts in air that can be positioned on 270° of the scale.
They are usually made in silver, for severe working conditions we recommend platinum, and for use under vibration they can be equipped with magnetic blocks.

Electrical contacts can be applied to all manometers, hydrometers, and vacuum guages over DN60.

Our Electrical Contacts catalog is available for you to download in PDF format. Click here.


thermometer wells

thermometer wellsOur range of wells as well as physically protecting the thermometers bulb also protect against corrosion. They allow the thermometer to be removed and/or changed whilst maintaining the container sealed. The thermal conduction between bulb and well by using mineral oil or aluminium powder.


bulbs and fittings

For details on the various types pf bulbs and special attachments available please view our catalog which is available on request or dowloadable using the link at the bottom of this page.


further information

Inert Gas Thermometers Catalog - Click to download !For more information on our range of inert gas thermometers please contact us at

Our Inert Gas Thermometers catalog is available for you to download in PDF format. Click here. .

Once downloaded you must have Acrobat Reader installed on your computer to view or print our catalog. Acrobat Reader is available FREE to download now !