DS18B20 Water Proof Temperature Probe Sensor

The DS18B20 Water Proof Temperature Probe is a digital sensor sealed inside a stainless steel tube for measuring temperature in water, soil, and liquids. As a ds18b20 water temperature sensor, it sends temperature data as a digital signal (a binary number) over a single wire — no analog reading needed. The probe is 6mm wide and 50mm long with a 1 metre cable.

One fact most beginners miss: the sensor ds18b20 uses the 1-Wire protocol, which lets you connect multiple sensors on the same data pin by assigning each one a unique 64-bit address. A known limitation is the 750ms query time at 12-bit resolution, which feels slow in fast-refresh projects. The ds18b20 temperature sensor works directly with Arduino and ESP32 using the Dallas Temperature library. Connect the data wire to any GPIO pin, add a 4.7kΩ pull-up resistor, and get your first reading in under two minutes. StemVolt provides this sensor with trusted quality, ensuring reliable performance and easy usability.

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Features:

• Query time of 750 msec at 12-bit mode delivers highly precise temperature conversions
• Probe diameter of 6mm fits standard pipe fittings and tank openings without drilling
• The ds18b20 digital temperature sensor uses 1-Wire protocol allowing multiple sensors on one pin

Technical specifications:

Applications:

• A home aquarium monitor uses this probe to check fish tank water temperature daily
• The DS18B20 Water Proof Temperature Probe monitors pipe inlet and outlet temperatures in a home heating system
• A fermentation controller reads liquid temperature inside a brew tank and controls a heating pad via relay
• A multi-point pipeline monitor reads ds18b20 probe sensor data from four sensors on one GPIO line simultaneously

Package includes:

• 1 x DS18B20 Water Proof Temperature Probe Sensor