DS18B20 Waterproof Digital Temperature Sensor Module & Cable

DS18B20 Waterproof Digital Temperature Sensor Module

The DS18B20 Waterproof Digital Temperature Sensor is a compact, reliable, and highly accurate digital temperature sensing solution — perfect for Arduino projects, DIY electronics, aquariums, outdoor monitoring systems, industrial automation, and more. Encased in a durable stainless steel probe with full waterproofing, this sensor thrives in wet, humid, or demanding environments where ordinary sensors would fail.

Why Choose the DS18B20 Sensor?

• Waterproof Stainless Steel Probe: Fully sealed design protects the sensor in wet, submerged, or high-moisture environments.
• Digital 1-Wire Output: Communicates digitally over a single data wire for clean, accurate readings without signal noise.
• Wide Temperature Range: Measures from -55°C to +125°C (-67°F to +257°F) with ±0.5°C accuracy.
• Multiple Cable Lengths: Available with 1m, 2m, or 3m cables — plus board module and standalone versions — so you can match the sensor to your exact project needs.
• Easy Integration: Compatible with Arduino, Raspberry Pi, and other microcontrollers; supports multiple sensors on a single data bus.
• Durable Construction: Stainless steel housing resists corrosion and mechanical wear for long-lasting, dependable operation.

Available Variants

• DS18B20 with 1m wire
• DS18B20 with 2m wire
• DS18B20 with 3m wire
• DS18B20 Module (PCB board version)
• DS18B20 Blue (standard bare sensor)

Specifications

Ideal Applications

• Aquarium and fish tank temperature monitoring
• Weather stations and outdoor temperature logging
• 3D printer heated bed monitoring
• Soil and greenhouse temperature tracking
• Arduino and Raspberry Pi DIY electronics projects
• Industrial and home automation systems

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Frequently Asked Questions

Q: What is the DS18B20 waterproof digital temperature sensor used for?

A: The DS18B20 waterproof digital temperature sensor is widely used in Arduino and Raspberry Pi projects, aquarium monitoring, greenhouse temperature tracking, weather stations, 3D printer control, and industrial automation. Its waterproof stainless steel probe makes it suitable for wet and submerged environments.

Q: What cable lengths are available for the DS18B20 temperature sensor?

A: The DS18B20 sensor is available with 1m, 2m, or 3m cable lengths. A standalone module (PCB board) version and a bare blue sensor version are also offered, giving you flexible options to suit any project setup.

Q: Is the DS18B20 sensor compatible with Arduino and Raspberry Pi?

A: Yes! The DS18B20 uses the standard 1-Wire digital protocol, which is fully compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and virtually any microcontroller. Multiple DS18B20 sensors can even share a single data line simultaneously.

Q: How accurate is the DS18B20 digital temperature sensor?

A: The DS18B20 delivers ±0.5°C accuracy within the -10°C to +85°C range and can measure temperatures from -55°C all the way up to +125°C, making it one of the most accurate and versatile digital temperature sensors available for DIY and professional applications.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.