DS18B20 Digital Temperature Sensor

DS18B20 Digital Temperature Sensor – Product Description

The DS18B20 Temperature Sensor is a high-accuracy digital temperature sensing module designed for Arduino, Raspberry Pi, ESP32, STM32, and other microcontroller projects. Using a simple 1-Wire communication interface, the sensor requires only a single data pin for communication, making wiring and integration easy. Each DS18B20 sensor contains a unique 64-bit serial code, allowing multiple sensors to operate on the same data line.

With a wide temperature measurement range of -55°C to +125°C and accuracy of ±0.5°C between -10°C and +85°C, the DS18B20 is ideal for weather stations, industrial monitoring, home automation, HVAC systems, aquariums, greenhouses, and temperature-controlled projects. The waterproof probe version features a stainless-steel housing for reliable operation in wet or harsh environments.

Features

• Digital temperature sensing with 1-Wire interface
• Wide measurement range: -55°C to +125°C
• High accuracy: ±0.5°C (-10°C to +85°C)
• Configurable 9 to 12-bit resolution
• Operates from 3.0V to 5.5V
• Unique 64-bit serial ID for multiple sensor networking
• Waterproof stainless-steel probe (selected models)
• Supports long-distance signal transmission without significant degradation
• Compatible with Arduino, ESP32, Raspberry Pi, STM32, and other microcontrollers

Technical Specifications

• Sensor IC: DS18B20
• Supply Voltage: 3.0V – 5.5V DC
• Communication Protocol: 1-Wire
• Temperature Range: -55°C to +125°C
• Accuracy: ±0.5°C
• Resolution: 9–12 bit (programmable)
• Conversion Time: Up to 750ms
• Probe Material: Stainless Steel (Waterproof Version)
• Cable Length: Approx. 1 Meter (varies by model)

Applications

• Weather Monitoring Systems
• Smart Home Automation
• Greenhouse Temperature Control
• Aquariums and Water Temperature Monitoring
• Industrial Process Monitoring
• HVAC Systems
• Food Storage and Refrigeration
• IoT Temperature Logging Projects