Thermometer

These devices are also known as dew point thermometers. Industrial pyrometers are also used to measure heating systems, for example. But of course we cannot forget body thermometers, which can be used to detect our temperature. Remember, industrial non-contact infrared thermometers cannot be used to measure temperature, nor can they be used as baby thermometers.

How do infrared non-contact thermometers work?

The basic function of infrared thermometers is quite simple. Objects emit heat. This is captured by a laser sensor and converted into electrical energy. This happens in the so-called optics of the device. The temperature is then shown on the display. The measurement is completely non-contact and easy to perform. However, there are differences in quality between the devices.

Features of infrared thermometers

Today, there is no longer any need for the thermometer to come into contact with the surface of the object or body to be measured, i.e. infrared non-contact thermometers measure temperature in a non-contact way. They are characterised by high accuracy. In addition, the display is easy to read. Another important feature of good quality pyrometers is that they have a sufficiently large measuring range: they can measure below -50 degrees Celsius and above +500 degrees Celsius.

At what distance can a non-contact thermometer be used effectively?

If you want to take a temperature with the infrared thermometer, a non-contact distance of between 5 and 15 cm is recommended. But if you are using the infrared thermometer for industrial applications, this distance can be up to one metre.

How accurately do non-contact infrared thermometers measure?

Infrared thermometers measure temperature relatively accurately. On average, the tolerance is less than 0.4 degrees Celsius. But there are several factors to consider when determining the accuracy of an infrared thermometer. First, the measuring range indicates the highest and lowest temperatures that can be measured. However, high accuracy is not important for all measurements. If a certain tolerance is acceptable, a cheaper instrument can be chosen.

Applications of infrared non-contact thermometers

Of course it depends on your needs which infrared thermometer you choose. While cheaper devices are more for home use, professionals usually use higher quality thermometers. In light of this, we can basically distinguish between two different types of infrared thermometers. They differ not mainly in size but in their field of application.

The standard size infrared thermometer is pistol-shaped and fits well in the hands of professionals. Professional thermometers usually have an LCD or LED display. Conversely, those designed for home use, with much weaker readings, are more suitable for occasional use.

What to know about dew point thermometers

The infrared thermometer is perfect for measuring dew point, for example, because of the way it works. This is the temperature at which dew is formed when air saturated with water vapour cools. Condensation then occurs, which can promote mould growth. The device measures the surface temperature using the double laser and calculates the dew point threshold as a function of the measured humidity. For this reason, the infrared thermometer is often used on construction sites to check the insulation performance of entire facades.

Advantages of laser contactless thermometers

Handheld thermometers with laser aiming light are specifically designed to measure the temperature of surfaces that are moving, difficult to reach or possibly dangerous to touch.

What to look out for when buying an infrared thermometer?

The thermometer you use to measure your temperature will certainly not show temperatures as high or low as, for example, an industrial infrared thermometer. Remember that high-quality devices can reliably detect even extreme temperatures. But they not only measure it, they also display it properly.

The large, backlit display makes it easy to read the results, and some devices also have LED displays. But for even greater safety, you can choose an infrared thermometer that includes an audible alarm to warn you of a risk level.

Whether for body thermometry or industrial use, the right device is essential. Take a look at our range of thermometers!