Description
Product Description
The Waterproof DS18B20 Temperature Sensor is a digital temperature probe designed for measuring temperature in liquids and other suitable environments. It uses the DS18B20 digital temperature sensor, which communicates with microcontrollers through the 1-Wire communication protocol.
The probe is commonly used for water temperature monitoring, aquarium systems, weather stations, home automation, and temperature-control projects. Its waterproof probe construction makes it suitable for applications where the sensing tip needs to be placed in water or another compatible liquid.
The sensor can be interfaced with Arduino, ESP32, Raspberry Pi, and other compatible microcontroller platforms using appropriate libraries and wiring.
Key Features
- Waterproof-style temperature probe
- Uses the DS18B20 digital temperature sensor
- Digital temperature measurement
- 1-Wire communication interface
- Suitable for liquid temperature monitoring
- Supports multiple sensors on a shared 1-Wire data bus, subject to correct addressing and wiring
- Compatible with Arduino and other supported platforms
- Useful for water monitoring and temperature-control projects
- Simple integration with compatible microcontrollers
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Waterproof Temperature Sensor |
| Sensor Model | DS18B20 |
| Sensor Type | Digital Temperature Sensor |
| Communication Protocol | 1-Wire |
| Temperature Range | -55°C to +125°C |
| Accuracy | Typically ±0.5°C from -10°C to +85°C |
| Resolution | Configurable: 9 to 12 bits |
| Supply Voltage | Commonly 3.0V to 5.5V for the DS18B20 IC |
| Output | Digital |
| Probe Type | Waterproof-style probe |
| Application | Liquid and Environmental Temperature Monitoring |
Typical Wire Connections
Wire colors can vary by manufacturer, so check the product wiring or datasheet before connecting.
- VCC – Sensor power supply
- GND – Ground
- DATA – 1-Wire data connection
A pull-up resistor, commonly 4.7 kΩ, is generally required between the DATA line and the sensor supply for reliable communication. Some modules or cable assemblies may already include one.
Applications
- Water temperature monitoring
- Aquarium temperature measurement
- Fish tank monitoring systems
- Hydroponics systems
- Weather stations
- Home automation
- Liquid temperature measurement
- Temperature-controlled systems
- Arduino and ESP32 projects
- Raspberry Pi monitoring projects
- Robotics and DIY electronics
Important Note
The DS18B20 chip is not inherently waterproof; water resistance depends on the probe enclosure, cable entry, seals, and overall product construction. Avoid prolonged immersion unless the specific probe is rated for it. This sensor measures temperature and does not measure liquid level or pressure.
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