DS18B20 Waterproof Temperature Sensor — 1-Meter Cable

Key Features

• Digital Temperature Sensor: Uses the DS18B20 1-Wire digital interface for accurate and noise-resistant temperature readings.

• Waterproof Stainless-Steel Probe: Durable and safe for immersion in water and other non-corrosive liquids.

• 1-Meter Cable: Long, flexible cable for extended installation reach.

• High Accuracy: ±0.5°C accuracy in typical ranges.

• Wide Temperature Range: –55°C to +125°C

• Multiple Sensor Support: Connect many sensors on the same 1-Wire bus using unique digital addresses.

• Easy Integration: Works seamlessly with Arduino, ESP8266, ESP32, STM32, and Raspberry Pi.

Technical Specifications

• Sensor Model: DS18B20

• Temperature Range: –55°C to +125°C

• Accuracy: ±0.5°C (–10°C to +85°C)

• Output Type: Digital (1-Wire protocol)

• Probe Material: Stainless steel

• Probe Size: ~6mm diameter × 50mm length

• Cable Length: 1 meter

• Cable Type: 3-wire (Red: VCC, Yellow/White: Data, Black: GND)

• Operating Voltage: 3.0V – 5.5V

• Waterproof Rating: Suitable for submersion (not for corrosive liquids)

Applications

• Aquarium & fish tank temperature monitoring

• Hydroponics & agriculture sensing

• Industrial temperature logging

• Weather stations

• HVAC & refrigeration

• Home automation / IoT projects

• Water heater or pipe monitoring

Why It’s Useful

The DS18B20 offers accurate, stable, and noise-resistant temperature readings with simple wiring and digital output—perfect for both beginners and advanced projects. The waterproof metal enclosure makes it ideal for liquid and outdoor environments.