DS18B20 Water Proof Temperature Probe

Overview

A digital temperature sensor in a waterproof probe housing — ideal for measuring liquids or outdoor/wet environments.

Key Specs

Pinout

VCC, GND, DATA (1-Wire, typically needs a 4.7kΩ pull-up resistor)

Features

• Waterproof probe — safe for direct liquid immersion
• Multiple sensors can share a single 1-Wire bus

Compatible With

Arduino (OneWire + DallasTemperature libraries), ESP32, ESP8266

Use Cases

• Liquid temperature monitoring (tanks, aquariums, brewing)
• Outdoor temperature sensing

FAQ

Does it need a pull-up resistor? Yes, typically 4.7kΩ between DATA and VCC.