123-5591 - RS PRO PT100 RTD Sensor, 4mm Dia, 150mm Long, 4 Wire, Probe, Class B

Product Details

Industrial PT100 Sensors

RS Pro Pt100 multipurpose temeperature probes. A rigid 316 stainless steel sheath in a wide variety probe diameters.

PT100 class B
4 Wire
Rigid Stainless steel probe
Teflon insulated flexible lead

What is an RTD?

An RTD is a type of temperature sensor based on the correlation between metals and temperature. As the temperature of a metal increases so does its resistance to the flow of electricity. This resistance can be measured and converted to a temperature reading. In a Pt100 RTD ’Pt’ stands for platinum (platinum wire or film) and ’100’ means that the temperature sensor has a resistance of 100 Ohms at 0°C. Platinum is the most reliable metal due to its linear resistance to temperature relationship over a large temperature range.

What is a Pt100 Probe?

A Pt100 probe is the most rugged form of RTD. The Pt100 temperature sensor element is mounted inside a metal sheath or probe. This protects it from being damaged by the surrounding environment when it is inserted into the process to be measured. The other end of the probe is terminated by an insulated lead comprising of 4 wire tails which are connected to the temperature measuring equipment.