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High Temperature Magnetic Pt100 Sensor PRT (Type 81HT)

Surface Resistance Thermometers - Pt100 Sensors

RTD, PRT, Pt100 Sensor High Temperature Magnetic

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This versatile magnetic RTD Pt100 sensor is suitable for high temperature measurements on ferrous surfaces up to a maximum of 300°C. The sensor is supplied with stainless steel braided fibreglass insulated cable. Available in tolerance classes B or A as standard and has an operating temperature range of -10ºC to +300ºC. Magnet Dimensions: 29mm dia. X 8.5mm thick. Available in a 3 or 4-wire configuration.

Magnetic RTD Enquiry Form

1. Tolerance of Element

	Tolerance of Element (IEC 60751 for Pt100)		Select
Grade	Accuracy @ 0ºC	Accuracy @ 100ºC
B	±0.30°C	±0.80°C
A	±0.15°C	±0.35°C

2. Cable Length

mtrs*

3. Wiring Configuration

	Wiring Configuration (IEC 60751)	Select
3	3 wire (most popular)
4	4 wire

4. Optional Plug Style

Illustration	Select
CE7 - Miniature Plug Plastic, rated to 220ºC (normal)
CE6 - Standard Plug Plastic, rated to 220ºC (normal)

5. Quantity Required

Qty Required

Contact Details

Company Name

Your Name

Title/Dept.

Email

Telephone

Additional Information

If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

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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!