DS18B20 Waterproof High Accuracy Digital Temperature Sensor

The DS18B20 is a high-accuracy digital temperature sensor designed to measure temperatures from –55°C to +125°C with reliable and stable performance. It offers an accuracy of ±0.5°C in the commonly used range, making it suitable for applications that require precise temperature monitoring. The digital output eliminates signal loss and noise issues commonly found in analog sensors.

This sensor uses a 1-Wire digital communication interface, which allows multiple DS18B20 sensors to be connected to a single microcontroller pin. This feature greatly simplifies wiring, especially in systems that require multiple temperature measurement points. It is fully compatible with popular platforms such as Arduino, Raspberry Pi, ESP32, ESP8266, PIC, STM32, and other microcontrollers.

The DS18B20 comes enclosed in a waterproof stainless steel probe, making it ideal for measuring liquid temperatures and operating in harsh or outdoor environments. The rugged probe protects the sensor from moisture, dust, and corrosion, ensuring long-term durability and consistent readings even in challenging conditions.

Operating over a wide voltage range of 3V to 5.5V, the sensor is suitable for both low-power and standard electronic systems. It also features low power consumption, which makes it especially useful for battery-powered and IoT-based projects. The availability of long cable options allows for remote temperature sensing in hard-to-reach locations.

The DS18B20 Waterproof Temperature Sensor is widely used in aquarium and water tank monitoring, industrial liquid temperature measurement, home automation and HVAC systems, weather stations, IoT temperature monitoring solutions, greenhouse and hydroponics systems, and various Arduino and Raspberry Pi projects.

Choosing the DS18B20 means selecting a dependable, accurate, and easy-to-use temperature sensor. Its combination of digital communication, waterproof design, and high precision makes it an excellent choice for both DIY enthusiasts and professional temperature sensing applications.