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A waterproof DS18B20 digital temperature probe with a 0.5m cable and XH2.54mm connector. Ideal for monitoring temperatures in wet or harsh environments inclu...

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A waterproof DS18B20 digital temperature probe with a 0.5m cable and XH2.54mm connector. Ideal for monitoring temperatures in wet or harsh environments including aquariums, hydroponics, brewing, and outdoor weather stations.

The DS18B20 is a popular one-wire digital temperature sensor that communicates over a single data line, making it easy to use with Arduino, Raspberry Pi, and ESP32 microcontrollers. Multiple sensors can share the same data bus for multi-point temperature monitoring.

Key Features

  • Waterproof Stainless Steel Probe – Sealed housing for use in liquids and outdoor environments
  • Wide Temperature Range – Measures from −55°C to +125°C
  • ±0.5°C Accuracy – High accuracy in the −10°C to +85°C range
  • One-Wire Digital Interface – Single data line with unique 64-bit serial code per sensor
  • XH2.54mm Connector – Plug-in connection for easy integration
  • 0.5m Cable Length – Flexible lead for convenient sensor placement

Specifications

  • Sensor – DS18B20
  • Temperature Range – −55°C to +125°C
  • Accuracy – ±0.5°C (−10°C to +85°C)
  • Resolution – 9 to 12-bit configurable
  • Interface – One-Wire (Dallas/Maxim)
  • Cable Length – 0.5m
  • Connector – XH2.54mm

Ideal For

  • Aquarium and hydroponic temperature monitoring
  • Home brewing and fermentation control
  • Outdoor weather stations
  • Arduino and Raspberry Pi sensor projects

Package Contents

  • 1× Waterproof DS18B20 Temperature Probe (0.5m cable with XH2.54mm connector)
Note: A 4.7kΩ pull-up resistor on the data line is typically required for reliable one-wire communication.

Jargon buster

Plain-language definitions for the technical terms used above.

DS18B20
The DS18B20 is a common digital temperature sensor, often supplied in a waterproof stainless-steel probe, that sends its readings to a microcontroller over a 1-Wire connection. It is a typical choice for adding temperature data to environmental or water-monitoring projects.
ESP32
ESP32 is a family of low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
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