XIQI Electric CG-WZPT-03 PT100 Temperature Sensor - M8 Thread, 5x100mm Probe, 1m Waterproof 3-Wire Cable

A 3-wire PT100 configuration, like the one used in the CG-WZPT-03, includes a dedicated sense wire that allows the measuring instrument to compensate for the resistance of the lead wires themselves. This significantly improves accuracy over long cable distances compared to a basic 2-wire setup, where lead resistance is included in the measurement, causing error.

Install the probe by threading it directly into a pre-tapped M8 hole in your tank, pipe, or process vessel. For a secure seal, use an appropriate high-temperature thread sealant or PTFE tape on the threads. Ensure the full sensing length of the probe is immersed in the medium for accurate measurement and avoid overtightening to prevent damage to the threads.

While the stainless steel probe is rated for up to 800°C, the PVC or silicone jacket of the attached cable has a lower maximum continuous temperature, typically around 105°C to 200°C depending on the material. It is crucial to route the cable away from direct high-heat sources and use high-temperature conduit or insulation in areas where ambient temperatures exceed the cable's rating.

Yes, but it requires an intermediate signal conditioner or RTD amplifier module. The PT100 provides a resistance output that must be converted to a voltage readable by a microcontroller's ADC. You will need a dedicated RTD-to-digital converter (like a MAX31865-based breakout board) that supports 3-wire configuration and provides an SPI or I2C interface for connection to Arduino or Raspberry Pi.