Features: The DS18B20 base contactless temperature sensors features a 1 Wire bus protocol for seamlessly integration with microcontrollers, ideal for prototyping and industrial automation projects. With expansive -55℃ to 125℃ ranging and 20x7.5x3.6mm probe, this sensors delivers precise readings in confined space while resisting electromagnetic interferences via RVVP shielded cables. For engineers, developers, and industrial technicians requiring reliable temperature monitoring without invasive installations in appliances, machinery, or experimental setups. Perfect for HVAC systems, laboratory equipment, and curved surfaces applications where none drill mounting with adhesive tape ensures quick, damage less deployment. Its double shielded PVC wiring maintains signals integrity in electrically noise environment, combining durability with plugs and play functionality. Specifications: Sensors type: DS18B20 (1-Wire bus protocol) Temperature measurement ranging: -55℃ ~ +125℃ Size: 20x7.5x3.6mm Type:0.5/1/2/3 Package Includes: 1pcs Temperature Sensors note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.