This Pt100 temperature sensor, using thin film resistor, has stable performance and high precision. Features:1, Stainless steel inner thread base. 2, High precision resistance chip.3, High temperature resistance. 4, Waterproof and oil-proof wire, anti-corrosion.Specifications:Type: RTD PT100 (membrane) A classWorking Temperature: -50 to 300 Probe Length: 50mm (2") Diameter: 6mm (0.23")Thread Size: 1/2 "NPT Nominal Outside Diameter: 0.84" Probe Material: Stainless steelWire: Tin plated copper wireWire Length: 2m (6.6') Weight: 100 g(approx.)Package includes:1x Temperature Sensor Note: 1/2" NPT here indicates the national pipe thread standard(US), please check first and make sure this is the size you need. 1Stainless steel inner thread base 2High precision resistance chip 3High temperature resistance 4Waterproof and oil-proof, tin plated copper wire 5Working temperature: -50 to 300