Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Sensor Type	DS18B20 Digital Temperature Sensor
Communication Protocol	1-Wire Interface
Temperature Range	-55°C to +125°C
Accuracy	±0.5°C (from -10°C to +85°C)
Resolution	9-bit to 12-bit programmable
Operating Voltage	3.0V to 5.5V DC
Board Material	FR-4 PCB with Gold Plated Contacts
Connector Type	3-Pin Header (VCC, Data, GND)
Application	Arduino, Raspberry Pi, IoT Projects
Package Includes	1x DS18B20 Module Board

6 reviews

Anonymous

Mar 27, 2026

Rating: 5/5

Easy for beginners

As someone new to electronics, I found this very easy to set up. There are plenty of tutorials online specifically for this module. It lit up immediately when I uploaded the sample code.

Anonymous

Mar 24, 2026

Rating: 4/5

Good value, fast shipping

Great little sensor for the price. It took a moment to get the code right for multiple sensors on one pin, but once configured, it works well. Deducting one star because the header pins were slightly bent upon arrival.

Anonymous

Mar 23, 2026

Rating: 5/5

Reliable and Accurate

I used this for a home brewing temperature monitor. The accuracy is impressive within the specified range. The waterproof probe version is also available if you need to submerge it, but this board is great for ambient air testing.

Anonymous

Mar 21, 2026

Rating: 5/5

Great for greenhouse monitoring

I bought three of these to monitor different zones in my small greenhouse. They communicate perfectly over long wires. Very happy with the stability of the data logs.

Anonymous

Mar 05, 2026

Rating: 4/5

Solid component

Works as expected. The response time is decent, though not instant. Make sure you have a pull-up resistor if your microcontroller board doesn't have one built-in, although many breakout boards include it.

Anonymous

Mar 01, 2026

Rating: 5/5

Perfect for Arduino Projects

This module works flawlessly with my Arduino Uno. The wiring is straightforward, and the library support is excellent. Readings are consistent and match my calibrated thermometer.

5 FAQ

Q: Can I connect multiple sensors to a single GPIO pin?

A: Yes, the DS18B20 supports multi-drop capability via the 1-Wire protocol. You can connect multiple sensors in parallel to one data pin, provided each has a unique address.

Q: Is a pull-up resistor included on the board?

A: Yes, this breakout board includes a 4.7kΩ pull-up resistor between the VCC and Data lines, so you can connect it directly to most microcontrollers without extra components.

Q: Does this module come with a waterproof probe?

A: No, this specific listing is for the bare board module intended for air temperature or dry environments. We do sell a separate waterproof probe version if you need to measure liquid temperatures.

Q: Is this compatible with 3.3V logic like ESP32?

A: Absolutely. The module operates comfortably within the 3.0V to 5.5V range, making it fully compatible with 3.3V systems like the ESP32 and ESP8266.

Q: What is the update rate of the sensor?

A: The conversion time depends on the resolution setting. At 12-bit resolution (highest precision), the conversion takes approximately 750ms. Lower resolutions provide faster updates.

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