The Amphenol Advanced Sensor/Thermometrics Part AL03006-1248-73-G1 is a NTC (Negative Temperature Coefficient) Glass Encapsulated Thermistor. It has a resistance of 2Kohms at 25°C and a B-Value (B(25/85)) of 3499. This thermistor can measure temperatures ranging from -50°C to 204°C. It is a reliable and versatile thermistor, suitable for various applications that require accurate temperature sensing.