TEMPERATURE SENSOR

DS18B20 Digital Temperature Sensor – High-Precision Waterproof Sensor

Overview

The DS18B20 is a versatile digital temperature sensor known for its high accuracy, ease of use, and robust design. It operates on a single-wire communication protocol, allowing multiple sensors to be connected on the same data line. With its wide operating range and durable construction, the DS18B20 is ideal for applications requiring precise temperature measurements in harsh environments.

Key Features

High Accuracy: ±0.5°C from -10°C to +85°C.

Wide Temperature Range: -55°C to +125°C, suitable for extreme environments.

Single-Wire Communication: Uses only one data line for easy integration with microcontrollers.

Multiple Sensor Support: Each sensor has a unique 64-bit address, allowing multiple sensors on a single bus.

Low Power Consumption: Can operate in parasite power mode, requiring only two wires.

Waterproof Version Available: Ideal for immersion in liquids and outdoor use.

Configurable Resolution: Supports 9-bit to 12-bit resolution for precision control.

Applications

Environmental monitoring and weather stations.

Smart home automation and HVAC systems.

Industrial process temperature control.

Aquarium and hydroponics temperature monitoring.

Automotive and refrigeration system monitoring.

Technical Specifications

Temperature Accuracy: ±0.5°C (-10°C to +85°C)

Operating Voltage: 3.0V – 5.5V

Communication Protocol: 1-Wire digital interface

Resolution: 9-bit to 12-bit selectable

Power Consumption: Low power, can operate in parasite mode

Response Time: ~750ms (at 12-bit resolution)

Waterproof Probe: Stainless steel casing available for liquid temperature sensing

Sensor chip: Small TO-92 package

Waterproof probe

Why Choose the DS18B20?

The DS18B20 is an industry-standard digital temperature sensor known for its accuracy, durability, and flexibility. Its ability to operate in extreme conditions, along with the simplicity of the 1-Wire interface, makes it perfect for embedded systems, industrial applications, and environmental monitoring. Whether used in smart enclosures, HVAC automation, or outdoor monitoring, the DS18B20 provides reliable and precise temperature readings.