Pressure and Temperature Measurement

Thermometers and Protective Tubes

This category covers Riegler bimetal thermometers and matching protective tubes for temperature measurement in pneumatic and process equipment. The instruments work on the bimetal principle and indicate temperature directly on the dial without auxiliary power.

The range of more than 60 items spans different connection threads (e.g. G 1/2), stem lengths from 40 to 100 mm, case diameters of Ø63 and Ø80 and measuring ranges up to 60 °C and 120 °C. Protective tubes separate the sensing element from the medium and allow the thermometer to be replaced without opening the process.

63 items
1 subcategory
1 manufacturer
Net prices plus VAT

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Buying guide

How to choose Thermometers and Protective Tubes

What matters when choosing: properties, comparison and typical applications.

Selection Criteria

Connection thread chosen to suit the mounting point, e.g. G 1/2.

Stem length 40, 60 or 100 mm depending on insertion depth into pipe or vessel.

Case diameter Ø63 or Ø80 for readability at the installation point.

Measuring range versions up to 60 °C or up to 120 °C.

Typical Applications

Bimetal thermometers with protective tubes indicate medium temperatures in compressed air, heating, cooling and process lines. The protective tube allows the instrument to be replaced during operation without draining the system.