DS18B20 Water Proof Temperature Probe Sensor

The DS18B20 Water Proof Temperature Probe Sensor is a stainless steel-encased digital temperature probe with a 6mm diameter, 50mm probe length, and 1 metre cable, operating from 3.0V to 5.5V with configurable 9 to 12-bit resolution and a maximum query time of 750 milliseconds. The ds18b20 water temperature sensor is the go-to choice for liquid and soil temperature measurement — its fully sealed stainless steel probe allows direct submersion in water, soil, or other wet environments where bare sensors like LM35, DHT22, or 10K thermistors would be damaged immediately.

The sensor ds18b20 uses the Dallas 1-Wire protocol — a key technical advantage where multiple DS18B20 probes can share a single data wire simultaneously, each identified by a unique 64-bit ROM code burned into the sensor at manufacture. This means a single Arduino pin can read temperatures from many ds18b20 temperature sensor probes placed at different locations — very useful for aquarium multi-zone, soil depth profiling, or pipeline multi-point monitoring without using multiple analog pins. The ds18b20 digital temperature sensor’s configurable 9 to 12-bit resolution trades query time against precision — 9-bit gives ~94ms conversion, 12-bit gives up to 750ms but delivers 0.0625°C resolution.

the ds18b20 probe sensor requires a 4.7kΩ pull-up resistor on the data line — unlike DHT22’s 10kΩ pull-up, this specific value is critical for reliable 1-Wire communication. StemVolt provide sensor is well-suited for enthusiast building water temperature monitoring systems and practical liquid sensing electronics projects.

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Features:

• Waterproof stainless steel probe for liquid and soil submersion
• 1-Wire protocol allows multiple sensors on one Arduino data pin
• Configurable 9-12 bit resolution — 0.0625°C at 12-bit, 94ms at 9-bit
• 3.0V to 5.5V wide supply range with 1 metre cable
• Each sensor has unique 64-bit ROM for multi-sensor identification

Technical specifications:

 Applications:

• DS18B20 Sensor used for Arduino aquarium water temperature monitoring
• College project uses ds18b20 water temperature sensor for liquid demo
• Aquaponics uses sensor ds18b20 for India fish tank multi-zone temperature
• Soil monitor uses ds18b20 temperature sensor for plant root zone sensing
• Pipeline uses ds18b20 probe sensor for multi-point fluid temperature logging

Package includes:

• 1 x DS18B20 Water Proof Temperature Probe Sensor