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We have ✅ 7 available of the EF-EF04095 in our Sydney warehouse. An extra 100 units will be available shortly.

Express post delivery (2-5 business days)

This sensor is a temperature detector used to test the liquid temperature based on 18b20.


Standard 3-pin GVS ports is easy to plug.

3V working voltage can drive the micro:bit.

Water-proof design makes it possible to use in the liquid.


SKU    EF4095

Working Voltage    DC 3.0V

Power Supply    3v-5v

Connector Type    Analog

Length of water-proof detector    1m

Pins Definition    1-Signal 2-VCC 3-GND

Response    Quick to response and high sensitivity

Circuit    Simple drive circuit

Stability    Stable and durable

Outlook and Dimensions

Quick to Start

Connection Diagram

Connect to the P1 port of the extension board.

Add Package

Click "Advanced" in MakeCode to check more choices.

Click "Extensions", and search “" in the dialogue box to download the codebase of 18b20.

Programme as the Picture Shows




The current temperature value is showing on the micro:bit.

The Octopus Waterproof DS18B20 Temperature Sensor appears in the following collections:

SKU EF-EF04095