PT1000-S Waterproof 1m 30mm Stainless Steel Pole Probe Temperature Sensor

Both are Platinum RTD sensors, but they have different base resistances at 0°C. A PT100 has a resistance of 100Ω, while a PT1000 has 1000Ω. The PT1000's higher resistance can simplify circuit design by reducing the impact of lead wire resistance, potentially improving measurement accuracy in longer cable runs without requiring 3- or 4-wire compensation techniques.

This is a passive 2-wire RTD probe. You must connect it to a measurement instrument capable of exciting the RTD with a stable, low-current source and measuring the resulting voltage drop to calculate resistance and, consequently, temperature. Ensure your readout device (PLC, DAQ module, transmitter) is configured for PT1000 (1000Ω) input and uses the correct Callendar-Van Dusen coefficients for accurate linearization across the full temperature range.

The 316L stainless steel probe sheath is rated for continuous operation up to 550°C. However, the specified measurement range of the internal PT1000 element is -200°C to 420°C. For optimal sensor life and accuracy, it is recommended to operate within the specified measurement range, respecting the 420°C upper limit for the sensing element itself.

Yes, the cable uses PTFE (Teflon) insulation, which is inherently hydrophobic and provides excellent waterproofing and chemical resistance. The probe sheath is also sealed. This makes the sensor suitable for immersion in liquids, provided the connections at the instrument end are properly protected from moisture ingress.