PT100 B-class 0.3 Precision Temperature Sensor 4x30mm 1m Cable

This sensor is specified with Class B (F0.3) accuracy per IEC 60751. Class B defines a tolerance of ±(0.3 + 0.005|t|)°C, where |t| is the absolute temperature in °C. It offers a robust balance of precision and value for most industrial applications, whereas Class A provides tighter tolerances typically required for laboratory-grade instrumentation.

The 4-wire configuration uses two wires for excitation current and two separate wires for voltage sensing directly at the RTD element. This method compensates for lead wire resistance, ensuring high accuracy over distance. Connect the paired leads to the dedicated 4-wire RTD input channels on your measurement device, following the device's manual for proper polarity and shielding connection to ground.

Yes. The hermetically sealed SUS304 stainless steel probe and FEP-insulated cable are designed for immersion in non-corrosive liquids, oils, and pastes within its specified temperature range (-50°C to +200°C). Ensure the entire probe length is immersed for accurate measurement and avoid exposing the cable junction to fluid if not specifically rated for submersion.

The included cable is 1 meter. For extensions, use high-quality, shielded twisted-pair cable to maintain signal integrity and minimize noise pickup. The practical limit depends on your measurement system's input impedance and noise environment; for long runs, consider using a 4-wire RTD transmitter module located near the sensor to convert the signal to a 4-20mA or RS485 output.