DS18B20 Waterproof Temperature Probe - 1m Cable, Stainless Steel Tube

Name: DS18B20 Waterproof Temperature Probe - 1m Cable, Stainless Steel Tube
Brand: Generic
SKU: SENS-3842
Price: 91.00 INR
Availability: OutOfStock

₹91.00 (Inclusive of all taxes)

Out of Stock

This DS18B20 waterproof temperature probe features a stainless steel encapsulated sensor with a 1-meter shielded cable, providing a robust solution for remote or wet environment temperature measurement from -55°C to +125°C. It operates on a 3.0V to 5.5V supply and communicates via the 1-Wire digital interface for easy integration with Arduino, Raspberry Pi, and other 3.3V/5V microcontrollers.

Features

Stainless steel tube encapsulation (6mm diameter) ensures IP68-equivalent waterproofing and corrosion resistance.
Digital 1-Wire interface provides stable, long-distance communication without signal degradation.
Wide measurement range from -55°C to +125°C with ±0.5°C accuracy.
Compatible with 3.0V to 5.5V systems; includes 1-meter shielded cable for remote placement.
Supports multi-drop capability, allowing multiple sensors on a single microcontroller pin.

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Description

The DS18B20 waterproof probe integrates the original DS18B20 digital temperature sensor chip within a hermetically sealed, stainless steel tube. This construction provides excellent environmental protection against moisture, dust, and corrosion, making it suitable for harsh industrial, agricultural, or outdoor applications. The sensor communicates via the 1-Wire protocol, requiring only a single digital pin on a host microcontroller for both data and power, simplifying system design.

Each probe is factory calibrated and features a unique 64-bit ROM code, enabling precise identification and the connection of multiple sensors on the same bus. The digital output eliminates analog signal noise and attenuation over the 1-meter cable length. Internal sealing glue and heat-shrink tubing on wire junctions provide additional strain relief and ingress protection for reliable operation in wet or condensing environments.

Key Features

Original DS18B20 digital temperature sensor chip for guaranteed performance.
Stainless steel (SUS-304) probe housing provides durable, waterproof construction.
1-Wire digital interface ensures noise-immune communication over long distances.
Selectable resolution from 9 to 12 bits for a balance of speed and precision.
Integrated pull-up resistor recommendation (4.7kΩ) for reliable data line operation.
Pre-wired with 1-meter shielded cable and color-coded leads (Red: VCC, Yellow/White: DATA, Black: GND).
Operational temperature range of -55°C to +125°C covers extreme environmental conditions.
Multi-drop capability allows network expansion with unique sensor addressing.

Applications

Remote temperature monitoring in HVAC and refrigeration systems.
Soil and nutrient solution temperature sensing in automated agriculture and hydroponics.
Liquid temperature measurement in tanks, vats, and industrial process control.
Environmental monitoring in weather stations and outdoor IoT sensor nodes.
Machine and equipment temperature profiling for predictive maintenance.

Technical Specifications

Sensor Model	DS18B20
Probe Housing	Stainless Steel Tube
Probe Dimensions	6mm diameter (approx. 30-45mm length)
Supply Voltage	3.0 VDC to 5.5 VDC
Operating Temperature	-55°C to +125°C
Accuracy	±0.5°C (typical)
Interface	1-Wire Digital
Cable Length	1 Meter (Shielded)
Cable Color Code	Red (VCC), Yellow/White (DATA), Black (GND)
Resolution	User-Selectable 9 to 12 Bits
Unique ID	64-bit ROM Code

Frequently Asked Questions

What is the required wiring and external components for this DS18B20 probe?

The probe requires three connections: Red to VCC (3.0V-5.5V), Black to GND, and Yellow/White (DATA) to a digital GPIO pin on your microcontroller. A 4.7kΩ pull-up resistor must be connected between the DATA line and VCC to ensure reliable 1-Wire communication. No other external components are necessary.

How accurate is this DS18B20 temperature probe and what is its measurement range?

This probe provides a typical accuracy of ±0.5°C across its full operational range of -55°C to +125°C. The digital 1-Wire interface and internal calibration of the original DS18B20 chip ensure stable readings. The resolution is user-configurable from 9 to 12 bits, allowing you to optimize the balance between conversion speed and measurement granularity.

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

Yes, the 1-Wire protocol supports multi-drop operation. Each DS18B20 probe has a unique, factory-programmed 64-bit ROM address, allowing you to connect many sensors to a single digital pin. Your control code must implement 1-Wire bus enumeration to identify and query each sensor individually.

Is the probe truly waterproof and suitable for direct liquid immersion?

Yes. The DS18B20 chip is hermetically sealed inside a stainless steel tube with internal sealing glue, providing a high degree of waterproofing (equivalent to IP68). This construction makes it suitable for direct immersion in non-corrosive liquids, burial in soil, or use in high-humidity environments without degradation.