DFRobot
Waterproof DS18B20 Sensor Kit
A waterproof DS18B20 digital temperature sensor kit with everything you need to connect to an Arduino. The stainless steel probe measures temperatures from -...
A waterproof DS18B20 digital temperature sensor kit with everything you need to connect to an Arduino. The stainless steel probe measures temperatures from -55°C to +125°C over a 1-Wire interface, requiring just one digital pin for communication. Multiple sensors can share the same data pin thanks to unique 64-bit IDs.
The kit includes a terminal sensor adapter for easy plug-and-play connection to Arduino — no breadboard wiring required.
Key Features
- Waterproof Probe – Stainless steel housing for immersion in liquids
- 1-Wire Interface – Only one digital pin needed for data
- Multi-Sensor Support – Multiple probes can share a single data pin
- Wide Temperature Range – -55°C to +125°C (-67°F to +257°F)
- Configurable Resolution – 9 to 12-bit temperature readings
- Terminal Adapter Included – Easy connection to Arduino without soldering
Specifications
- Sensor – DS18B20
- Operating Voltage – 3.0–5.5V
- Accuracy – ±0.5°C (-10°C to +85°C)
- Temperature Range – -55°C to +125°C
- Resolution – 9 to 12-bit (configurable)
- Query Time – <750 ms
- Probe Dimensions – 6 mm diameter × 35 mm long (stainless steel)
- Cable Length – 90 cm
- Cable Diameter – 4 mm
Wiring
- Type A: Red = VCC, Black = GND, Yellow = DATA
- Type B: Red = VCC, Yellow = GND, Green = DATA
Package Contents
- 1× Waterproof DS18B20 temperature probe
- 1× Terminal sensor adapter (DFR0055)
- 1× Digital sensor cable
Ideal For
- Water temperature monitoring (aquariums, pools, brewing)
- Environmental and weather station projects
- Arduino and Raspberry Pi temperature logging
- Industrial and outdoor temperature sensing
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- 1-Wire
- 1-Wire is a communication method where devices share a single data line, often with each device having its own address. It matters because several temperature modules can be connected to one microcontroller pin instead of needing a separate pin for each probe.
- DS18B20
- A common digital temperature sensor often sold in waterproof probe form. It matters here because the kit does not include temperature measurement, and a DS18B20 is the suggested add-on if your water readings need temperature context.
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Brands
Supplier page — dfrobot.com
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