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Home / Computer Hardware, Monitors & Peripherals / DS18B20 Fully Waterproof Temperature Sensor, Water Temperature Sensor
Computer Hardware, Monitors & Peripherals

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Interface Protocol 1-Wire Digital
Temperature Range -55°C to +125°C
Accuracy ±0.5°C (-10°C to +85°C)
Cable Length 1 Meter
Probe Material Stainless Steel
Supply Voltage 3.0V to 5.5V
Resolution 9 to 12-bit Configurable
Waterproof Rating IP68
Wire Configuration Red (VCC), Black (GND), Yellow (Data)
Compatibility Arduino, Raspberry Pi, ESP32

5 reviews

A

Anonymous

Apr 10, 2026

Rating: 4/5

Accurate but slow

Readings are precise but take a second to update.

A

Anonymous

Mar 29, 2026

Rating: 5/5

Essential for DIY projects

Easy to integrate with Home Assistant.

A

Anonymous

Mar 20, 2026

Rating: 5/5

Survived winter outside

Used it to monitor outdoor water barrel. Still working.

A

Anonymous

Feb 21, 2026

Rating: 5/5

Great for hydroponics

Works perfectly in my nutrient tank. No leaks so far.

A

Anonymous

Feb 12, 2026

Rating: 3/5

Cable could be longer

Works well but 1 meter is short for my setup.

5 FAQ

Q: Is it safe for drinking water?

A: The stainless steel is food grade, but please verify local regulations for your specific use.

Q: Does it work with 5V Arduino?

A: Yes, it is fully compatible with 5V logic boards like Arduino Uno.

Q: Do I need a resistor?

A: Yes, a 4.7k ohm pull-up resistor is recommended between VCC and Data.

Q: Can I cut the cable?

A: Yes, but you must reseal the connection to maintain waterproof integrity.

Q: What is the warranty period?

A: This item comes with a standard 30-day manufacturer warranty.

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