This item is well made of for and practical use. It is with good waterproof, and anti-rust performance. With professional design and to use, it is really a wonderful waterproof temperature sensors choice.Feature- ColorBlack- Material: Polymer.- Length: 100cm / 39.4 inch.- Nominal resistance: (2 centigrade): (commonly used) 1.5K, 2K, 5K, , , , 30K, 47K, , 100K, 1 , 200K, 230K, 500K, 1M, 1.2M.- Resistance accuracy: 1%, 2%, 3%.- / 50 (85): (common) 3380K, 3435K, 3470K, 3600K, 3899K, 39 , 3990K, 40 , 4100K, 42 , etc.- accuracy: 1%- Use temperature range: -40 degree centigrade ~ +300 degree centigrade (sub-high temperature and low temperature sensor, temperature chip and production process is different)- Dissipation power factor: 5 mW / degree centigrade ( )- Maximum rated power: 45mW- Thermal time constant: