DS18B20 1-Wire Temperature Sensor Waterproof Digital Stainless Steel - Pack of 5

Key Features

• Sensor Model: DS18B20
• Interface: 1-Wire digital communication protocol
• Probe: Waterproof stainless steel housing
• Probe Dimensions: 6mm diameter x 30mm length
• Operating Voltage: 3.0V to 5.5V
• Measuring Range: -55°C to +125°C (-67°F to +257°F)
• Accuracy: ±0.5°C (from -10°C to +85°C)
• Resolution: Selectable from 9-bit to 12-bit
• Output Wires: VCC (Red), Data (Yellow/White), GND (Black)
• Unique ID: Each sensor has a unique 64-bit serial code

Replaces / Cross-Reference Part Numbers

• Direct replacement for any application using a DS18B20 sensor IC in a waterproof probe configuration.

Compatibility & Fitment

• Compatible with microcontrollers and single-board computers supporting the 1-Wire interface, including Arduino, Raspberry Pi, ESP8266, and ESP32.
• Designed for measuring temperature in liquids, soil, and other wet or humid environments.
• The 6mm probe diameter fits standard thermowells and mounting hardware.

When to Replace

• Sensor fails to appear on the 1-Wire bus.
• Temperature readings are erratic, consistently incorrect, or do not update.
• Visible physical damage to the cable, heat-shrink seal, or stainless steel probe.

Installation Tips

• A 4.7kΩ pull-up resistor is required between the Data and VCC lines for stable communication.
• Connect wires to the corresponding VCC, GND, and data pins on your controller.
• Ensure the 1-Wire interface is enabled in your device's software configuration (e.g., raspi-config for Raspberry Pi).
• Multiple sensors can be connected to the same data pin due to their unique addresses.