Parameter information: power supply: 3.0V-5.5V; adjustable resolution: 9-12 bits; temperature range: -55 to +125; output lead: red (VCC), yellow (DATA), black (GND) the adapter module has a pull-up resistor, which can be directly connected to the GPIO of for the without external resistors Device DS18B20 temperature sensor: stainless steel housing size is about 6 x 50 mm / 0.2 x 2 inches, the total length of the digital temperature heating wire is about 1 meter / 39.4 inches, the length is enough to meet your needs High-quality: The probe is made of high-quality stainless steel, which is waterproof and moisture-proof, not easy to rust, and prevents short circuits. Wide application: This DS18B20 temperature sensor is compatible with for and is widely used in temperature monitoring of cable trenches, boilers, refrigerators, agricultural greenhouses, clean rooms, etc. colour: black Material: stainless steel Package Contents: 4 x DS18B20 temperature sensors 4 x Adapter modules 4 x Female to female jumper wires Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.