Platinum RTD Temperature Probes
“Resistance thermometers, also called resistance temperature detectors or resistive thermal devices (RTDs), are temperature sensors that exploit the predictable change in electrical resistance of some materials with changing temperature. As they are almost invariably made of platinum, they are often called platinum resistance thermometers (PRTs). They are slowly replacing the use of thermocouples in many industrial applications below 600 °C, due to higher accuracy and repeatability.”- wikipedia.org
QTI allows design engineers a wide degree of flexibility when designing RTD’s for their specific applications. From custom housings to a wide selection of wire and cable options, QTI’s Application Engineers are here to help. Click here to chat live with an application engineer.
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Specifications
- Made from Class 1/3 DIN, Class A, Class B, or Class 2B thin film platinum RTD elements
- 100 ohm, 500 ohm and 1,000 ohm RTD elements available
- 3,850 ppm Temperature Coefficient @ 0°C
- Operating temperature range –70°C to 500°C depending on model
- 1/3 DIN Class B = +/-.1°C at 0°C
- Class A = +/-.15°C at 0°C
- Class B = +/-.3°C at 0°C
- Class 2B = +/-.6°C at 0°C
- Long term stability = .04% max after 1000 hours at 500°C
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Housings
- Most all of our housings are available with an RTD sensor.
- Stainless Steel, Brass, Titanium, Plastic, Molded, Kapton

















