DFRobot Gravity Waterproof DS18B20 Temperature Sensor Kit - Digital Output

Name: DFRobot Gravity Waterproof DS18B20 Temperature Sensor Kit - Digital Output
Brand: DFRobot
SKU: SENS-2908
Price: 779.00 INR
Availability: OutOfStock

₹779.00 (Inclusive of all taxes)

Out of Stock

The DFRobot Gravity Waterproof DS18B20 Temperature Sensor Kit provides a robust digital temperature sensing solution for Arduino, Raspberry Pi, and other 3.3V/5V microcontroller platforms. Its sealed probe design enables reliable measurements in wet or outdoor environments, with a wide operating range from -55°C to +125°C.

Features

Integrates a factory-calibrated, waterproof DS18B20 digital temperature sensor probe.
Delivers high-accuracy digital readings via a 1-Wire interface for stable, noise-immune communication.
Features the DFRobot Gravity 3-pin interface for plug-and-play connectivity with Arduino and compatible shields.
Designed for harsh environments with a durable, sealed stainless steel probe tip and PVC cable.
Supports a broad measurement span from -55°C to +125°C with ±0.5°C typical accuracy.

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Description

This sensor kit centers on the industry-standard DS18B20, a programmable digital thermometer that communicates over a single-wire (1-Wire) bus. The sensor provides 9 to 12-bit user-configurable resolution, enabling a balance between conversion speed and measurement precision. The probe is hermetically sealed with a stainless steel tip and a waterproof PVC jacket, making it suitable for direct immersion in liquids or exposure to humid conditions.

The included adapter modules convert the sensor’s three-wire cable (VCC, GND, DATA) to a standard Gravity 3-pin connector (PH2.0-3P) and a screw terminal block, offering flexible integration options. The digital output eliminates analog signal conditioning requirements and provides excellent long-term stability, ideal for environmental monitoring, aquaculture, HVAC systems, and DIY IoT projects.

Key Features

Waterproof DS18B20 digital temperature sensor with stainless steel probe tip.
Digital 1-Wire output ensures high noise immunity and stable long-distance communication.
Wide operating voltage range from 3.0V to 5.5V DC for compatibility with 3.3V and 5V logic systems.
Extended temperature measurement range from -55°C to +125°C with ±0.5°C accuracy (typical).
Includes both a Gravity 3-pin plug-and-play connector and a screw terminal adapter for versatile wiring.
Compact and durable construction with a PVC-sheathed cable for reliable use in wet or outdoor environments.
Supports multi-drop operation, allowing multiple DS18B20 sensors to share a single microcontroller pin.
High-value build optimized for educational, prototyping, and light industrial monitoring applications.

Applications

Aquarium, hydroponic, and aquaculture water temperature monitoring.
Outdoor weather stations and environmental data logging systems.
HVAC and building automation for duct or pipe temperature sensing.
DIY IoT projects involving soil temperature measurement for agriculture.
Industrial process monitoring in non-corrosive liquid tanks.

Technical Specifications

Sensor Model	DS18B20
Interface	Digital 1-Wire
Supply Voltage	3.0V to 5.5V DC
Operating Temperature	-55°C to +125°C
Measurement Accuracy	±0.5°C (typical)
Resolution	User-selectable 9 to 12 bits
Probe Material	Stainless Steel Tip, PVC Cable Jacket
Cable Length	Approx. 1 meter
Connector Type	Gravity 3-pin (PH2.0-3P) & Screw Terminal Adapter Included
Dimensions (Module)	55mm x 70mm (approx.)

Frequently Asked Questions

What is the operating voltage range for this DS18B20 sensor kit?

The sensor operates from 3.0V to 5.5V DC, making it directly compatible with both 3.3V and 5V microcontroller systems like Arduino Uno, ESP32, and Raspberry Pi GPIO (using level shifting if necessary). The digital 1-Wire interface remains stable across this voltage range.

How do I connect this sensor to an Arduino board?

Use the included Gravity 3-pin adapter for plug-and-play connection to DFRobot Gravity shields or compatible pin headers. For direct wiring, use the screw terminal adapter: connect the red wire to 5V/VCC, black to GND, and yellow (data) to any digital I/O pin. A 4.7kΩ pull-up resistor between VCC and the data line is required for reliable 1-Wire communication.

Is the sensor probe fully submersible? What is its IP rating?

The DS18B20 probe tip is hermetically sealed in stainless steel with a waterproof PVC cable jacket, designed for immersion in non-corrosive liquids. While a specific IP rating is not formally stated by DFRobot for this kit, the construction is suitable for continuous use in wet environments, including water tanks and outdoor weather stations.

Can I connect multiple DS18B20 sensors to a single microcontroller pin?

Yes, the 1-Wire protocol supports multi-drop operation. You can connect multiple DS18B20 sensors (each with a unique 64-bit ROM address) to a single microcontroller data pin, using a single pull-up resistor. The included adapters simplify wiring for such daisy-chained configurations in sensor networks.

What is the temperature accuracy and response time of this sensor?

The DS18B20 provides a typical accuracy of ±0.5°C within the -10°C to +85°C range. Response time depends on the thermal mass being measured and the sensor's resolution setting. At the default 12-bit resolution, a conversion takes up to 750ms. The stainless steel probe tip offers good thermal conductivity for responsive readings in liquids.