Miniature Resistance Thermometer with Pot Seal

These Pt100 sensors are economical, semi flexible and suited to a wide variety of industrial applications up to (930°F) 500°C.
Custom built to your specification and terminated in a wide choice of pot seal styles and temperature ratings. Supplied with either short tails as shown or a longer extension lead
Alternatively, we have a large range of sensors available to buy online in various diameters and lengths

High accuracy, repeatability and reproducibility as simplex, duplex or triplex element assemblies
Wide operating temperature range of -60°F to 930°F (-100ºC to +500ºC).
Available in 2, 3 and 4 wire configurations, in grade A accuracy
316L Stainless Steel sheathed and manufactured to IEC 60751

Frequently Asked Questions

What is an RTD Pt100 sensor, and how does it work?
An RTD (Resistance Temperature Detector) Pt100 sensor measures temperature by detecting changes in electrical resistance. The "Pt" stands for platinum, the material used in the sensing element, and "100" refers to the resistance value of 100 ohms at 0°C. As the temperature changes, the resistance of the platinum element varies, allowing for accurate temperature measurements.
How accurate are RTD Pt100 sensors?
RTD Pt100 sensors offer high accuracy and stability, with industrial-grade elements ranging from Class B (±0.3ºC at 0ºC) to Class A (±0.15ºC at 0ºC). Higher precision options, such as 1/10 class elements, provide an accuracy of ±0.03ºC at 0ºC. These sensors are widely used in industrial, laboratory, and scientific applications requiring high precision. Additionally, we offer calibration services in our UKAS accredited laboratory.
What is the temperature range for RTD Pt100 sensors?
The temperature range of an RTD sensor depends on factors such as the construction, sheath material and insulation used in the construction. While some platinum elements can withstand temperatures up to 850°C, the overall sensor design will limit the maximum temperature rating. Please check the product specifications for the exact temperature range based on the sensor’s construction. If you need any advice, our engineers are happy to assist!

Illustration	Select
Crimp on St./St. Pot Seal
Threaded Pot - 8mm ISO x 1mm
Brass Compression Gland Seal 16mm ISO x 1.5mm - FIXED
St./St. Compression Gland Seal 16mm ISO x 1.5mm - FIXED
End Seal Temperature Rating: 275°F 455°F

Illustration	Select
PVC (rated to 220°F/105ºC)
PFA (rated to 480°F/250ºC)
Fiberglass with St./St. Overbraid (rated to 900°F/480ºC)
Please enter Wire length in feet ft