Why Temperature Probes are Superior to Thermometers

There is a pretty good chance that you have come across temperature probes before. They come in a wide array of shapes, sizes, and types, plus they can be used for any number of applications. Yet still, you may be more familiar with the more traditional thermometer.

As it turns out, temperature probes are actually quite a bit better than their counterparts. Here are a few key reasons why having a temperature probe is a superior option to a thermometer.

How Temperature Probe Types Work

Before we know how a temperature probe from RS is superior to thermometers, it helps to know how this piece of technology works in the first place. Though probes come in different styles, they typically all work the same in one way. They make contact with the surface of something and look for characteristic changes.

When they notice a change in temperature, they convert the activity into a voltage. The probe then reads that voltage to determine the overall temperature. The probe itself is actually connected to a readout device, which produces a simple reading that anyone can understand.

Why Probes are Better Than Thermometers

At the end of the day, temperature probes are superior to their thermometer counterparts for a lot of reasons. Let’s take a look at the key reasons why investing in a temperature probe is probably a better idea depending on the application.

Versatility: Though thermometers are becoming more and more versatile, temperature probes are still unmatched. They can be used to measure the temperature of gases, liquids, and solids with ease.

Repeatability: With frequent use comes the need for repeatability. Temperature probes are more ideal at producing better repeatability for more consistent results. This is key where precise temperature control is a must.

Durability: Though they are on the thin side and can look a bit fragile, temperature probes are actually quite durable. They are built to hold up against harsh environments, whereas traditional thermometers would wear down.

Speed: Temperature probes are also great at providing lightning-fast readings. Traditional thermometers are getting faster but can take up to 30 seconds to deliver a full reading. Where real-time control and monitoring are needed, temperature probes are the superior option.

Accuracy: For the most part, temperature probes provide a more accurate reading than traditional thermometers. The reason is that they measure temperature directly, whereas thermometers do not.

Remote Monitoring: Some of the latest and greatest temperature probes even provide the ability for remote monitoring. They can be connected to monitoring equipment or data logging systems, which allows for remote monitoring as the temperature data is collected.

Temperature Probe Types

It is also important to note that there are different temperature probe types to choose from. Here are the three main types that you are bound to run into at some point down the line.

NTC. Known as a negative temperature coefficient, NTC probes use a thermistor in order to measure temperature. When temperature changes, the resistance of this component ultimately changes. You would find NTC probes where temperature monitoring, control, and compensation are needed. These probes have fast response times, greater sensitivity, and lower costs.

RTD. These are used in industrial settings, especially where temperature calibration, process control and monitoring, and other industrial applications are needed. These are ideal where precise temperature control is a must.

Thermocouples. Thermocouples use two wires that are made of different materials. When there is a temperature change, a small electrical voltage is created and it can be used to find out the temperature. With a wide range, great accuracy, and great response times, thermocouples are a great choice.