DS18B20 Waterproof Temperature Sensor: The probe chip, whose pins are separated by heat shrink tubing, can prevent short circuits. Temperature Range: This DS18B20 temperature sensor has a temperature range of -55 ~ +125. Note: The wire can only withstand a high temperature of about 85C. Product Parameter: Power supply 3.0V - 5.5V, Output cable: Red (VCC), Yellow (DATA), Black (GND). Material: The digital temperature sensor has a waterproof design, high-quality stainless steel packaging, moisture-proof and rust-proof, suitable for a variety of digital temperature measurement and control equipment in confined spaces. Wide Application: This waterproof DS18B20 temperature sensor is suitable for thermostatic control, industry, thermometers, all thermal systems, etc. It is suitable for refrigerators, warehouses, tanks, telecommunication rooms, power rooms, cable ducts, etc. Range: 1 meter / 3.2 feet color: Black Material: Stainless steel Package contents: 10 x Temperature sensor Only the above package content, others are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement is +/- 1-3 cm.