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Home / Computer Hardware, Monitors & Peripherals / DS18B20 Module Single-Bus Digital Temperature Sensor Electronic Building Block

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Interface Protocol 1-Wire Digital
Operating Temperature -55°C to +125°C
Accuracy ±0.5°C ( -10°C to +85°C )
Resolution 9 to 12-bit
Power Supply 3.0V to 5.5V DC
Pin Configuration 3-Pin Header
Cable Length 1 Meter Shielded
Probe Material Stainless Steel
Compatibility Arduino, Raspberry Pi, ESP32
Package Weight 15 Grams

5 reviews

A

Anonymous

Apr 06, 2026

Rating: 5/5

Great for weather stations

Used this in my backyard weather station. Reads consistently and the waterproof probe handles rain well.

A

Anonymous

Feb 28, 2026

Rating: 5/5

Perfect for thesis project

Needed accurate temp data for my university project. This sensor delivered reliable data logs.

A

Anonymous

Feb 26, 2026

Rating: 5/5

Library support is excellent

Found plenty of example code for ESP32. Got it running in under 10 minutes.

A

Anonymous

Jan 27, 2026

Rating: 3/5

Check your wiring

Sensor works fine but make sure you have the data line pulled up correctly. Initially thought it was broken.

A

Anonymous

Jan 18, 2026

Rating: 4/5

Good value

Works as expected. The cable is a bit stiff but manageable for most projects.

5 FAQ

Q: What is the response time?

A: Typical conversion time is around 750ms for maximum resolution.

Q: Does it work with 5V Arduino?

A: Yes, it is compatible with both 3.3V and 5V logic systems.

Q: Is it safe for fish tanks?

A: Yes, the stainless steel probe is waterproof and safe for aquarium use.

Q: Is a resistor included?

A: No, please use a 4.7k ohm pull-up resistor between VCC and Data.

Q: Can I chain multiple sensors?

A: Yes, you can connect multiple DS18B20 sensors on the same data line.

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