DS18B20 temperature sensor waterproof metal probe - 2m cable

DS18B20 waterproof temperature sensor metal probe - 2m cable for Arduino, ESP32, ESP8266, Raspberry Pi

Original digital temperature sensor DS18B20 in a waterproof housing, with a 2 metre cable. The DS18B20 is a reliable solution for precise temperature measurement over a wide range from -55°C to +125°C. Thanks to its built-in ADC, the sensor provides readings with resolution up to 12 bits, corresponding to 0.0625°C precision. Measurement accuracy is 0.5°C in the range from -10°C to 85°C, making it ideal for many applications.

The sensor has a 1-wire interface, enabling communication over a single data wire and allowing multiple sensors on the same bus. Each DS18B20 has a unique serial number, which makes it easy to distinguish individual sensors in the system. The module is powered from 3.3V - 5V, making it fully compatible with popular microcontrollers and embedded systems.

Key technical features

The waterproof metal probe protects the measurement circuit from moisture and harsh environmental conditions. The long 2-metre cable makes it easy to route the sensor outside the device enclosure or place it in the medium being measured. Communication in the 1-wire standard greatly simplifies wiring in larger projects.

Example applications

• Liquid temperature measurement in aquariums and boilers
• Monitoring weather conditions in weather stations
• Temperature control in smart home and building automation systems
• Supervision of industrial processes and refrigeration
• Educational and hobby projects using microcontrollers

Benefits

• High measurement precision without user calibration
• Ability to connect multiple sensors to a single microcontroller pin
• Resistance to moisture and water thanks to the sealed metal probe
• Easy integration with systems powered at 3.3V and 5V
• Long cable for easier mounting at the desired measurement point

Sample startup code

Sample startup code for ESP32 using this sensor: https://flashesp.com/explore/tQGu0M4gO2cvTEZzr2FvW

Specifications

• Supply voltage: 3.3V - 5V
• Temperature measurement range: from -55°C to +125°C
• Measurement accuracy: 0.5°C in the range -10°C - 85°C
• Measurement accuracy: 1°C in the range -30°C - 100°C
• Measurement accuracy: 2°C in the range -55°C - 125°C
• Converter resolution: from 9 to 12 bits
• Pinout: VCC, GND, DATA
• Cable length: 2m
• Housing type: waterproof, metal probe