DS18B20 Digital Temperature Sensor

The DS18B20 Digital Temperature Sensor is a high-precision temperature sensor capable of measuring temperatures in a wide range. It communicates with microcontrollers through a single data wire (1-Wire protocol), which allows multiple sensors to be connected on the same data line. Many versions of the DS18B20 come in a waterproof stainless steel probe, making them suitable for harsh environments. The sensor provides digital output, eliminating the need for analog-to-digital conversion. It is widely used in weather monitoring systems, industrial temperature monitoring, HVAC systems, aquariums, and IoT temperature sensing projects. Key Features High-accuracy digital temperature sensing Uses 1-Wire communication protocol Multiple sensors can share one data pin Waterproof probe available Wide temperature measurement range Compatible with Arduino and other microcontrollers Technical Specifications Parameter Value Operating Voltage 3.0V – 5.5V Temperature Range -55°C to 125°C Accuracy ±0.5°C Communication 1-Wire Digital Resolution 9 to 12-bit programmable Pin Configuration Wire Description Red VCC (Power Supply) Yellow / White Data Black Ground Product Dimensions (Probe) Parameter Value Probe Length 50 mm (5.0 cm) Probe Diameter 6 mm (0.6 cm) Cable Length ~1 meter Weight ~10 g (0.010 kg) What’s in the Box 1 × DS18B20 Digital Temperature Sensor Probe