RS PRO Fahrenheit/Centigrade Dial Magnetic Dry Temperature Gauge, Suitable For Ferrous surfaces, Radiators

Technical Reference
Legislation and Compliance
RoHS Status: Not Applicable
Product Details

RS PRO Magnetic Thermometer

The principle of how Temperature Gauge work is around the idea of using two different bimetallic strips (usually steel and copper or steel and brass). When the strip is getting hotter, the metal is bending, and when the strip is colder, it shows the opposite. Therefore, the movement of the pieces correlates to the temperature indicating on a scale. The credit of this discovery goes to English Gentleman John Harrison in the 18th century. Even though the possibilities and technologies are constantly evolving, his findings are still valid. The Gauge is a simple, inexpensive and durable device to display the temperature of the surrounding atmosphere or an object. Their popularity reaches many industries, such as heating and ventilation, refrigeration industry, process manufacturing or process pipelines. Depending on your requirements, you can choose the right types of Temperature Gauge available on the current market. Some of them include magnetic thermometers (use with radiators), probe thermometers (use for food and gases) or clip Thermometers ideal for measuring the temperature of heating and water pipes.

We are proudly introducing our own branded RS PRO Magnetic Thermometer with bimetallic strip, which means no battery is required, only a bit of time to adjust to the temperature. The Thermometer is held in place by a robust and circular magnet, so you can apply it directly to a surface temperature of ferrous. They are ideal to use on a radiator, central heating or HVAC (heating, ventilation, and air conditions) apply. This 66 mm steel diameter comes with glass window cover and provides a temperature-sensitive range of 0°C up to + 120°C, although F° scale is also available.

You can explore our RS PRO range of vertical entry types by reviewing the following Temperature Gauges 324-8384, 324-8413, 324-8407, 324-8429

Features and Benefits

  • This 66 mm diameter is a dry temperature Gauge with bi-metal movement mechanism meaning no battery is required

  • The Thermometer has dual scale display with a glass window cover

  • Temperature Sensitive Range oscillates between 0°C up to + 120°C

  • The Gauge is suitable for various applications, particularly for fixing to radiators and flat and ferrous surfaces


The Temperature Gauge with a diverse range of industries across multiple sectors makes them mandatory, particularly in:

  • Oil & Gas

  • Energy (Power transmission and distribution)

  • Machine building and automation

  • Heating, ventilation and air handling

  • Food & Beverage

  • Refinery

  • Pharmaceuticals

  • Hydraulic

  • Paper

  • Chemical and Petrochemical Industry

  • Semiconductors Industry

Frequently asked questions

What to look out for when reading Gauge Thermometer?

The dial Thermometer contains a wealth of information, such as:

1. The Pointer indicates the temperature currently prevailing.
2. On display, we have information about the units measuring (PSI, °F, °C).
3. The accuracy class is either 1 or 2, and they depend on the scale spectrum defined error limits.
4. Dial Thermometers differentiate between scale range and measuring range.


RS Pro is our family brand to go-to and brings you a wide range of high-quality and high-value products to support your project. Trusted by engineers all over the world, every part of every RS PRO product is always rigorously tested against demanding industry standards. We are only giving the RS PRO seal of approval if we're confident of their exceptional quality, which means you can be convinced too.

Thermometers - Surface Contact Type

66mm diameter thermometers with Bi-metal movement.

Attribute Value
Thermometer Type Dial
Fixing Method Magnetic
Suitable Applications Ferrous surfaces, Radiators
Temperature Scale Both
Filling Type Dry
Case Material Steel
Case Diameter 63mm
Maximum Temperature Sensed +120°C
Minimum Temperature Sensed 0°C
Temperature Sensitive Range 0 → +120°C
183 In stock - FREE next working day delivery available
Price Each
£ 17.97
(exc. VAT)
£ 21.56
(inc. VAT)
Per unit
1 - 4
5 +
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