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Home / Computer Hardware, Monitors & Peripherals / DS18B20 Digital Temperature Sensor Module Waterproof Stainless Steel Probe Cable_1/2/3 Meters

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Communication Protocol 1-Wire Bus
Operating Voltage 3.0V to 5.5V DC
Temperature Range -55°C to +125°C
Measurement Accuracy ±0.5°C (from -10°C to +85°C)
Probe Material Stainless Steel 304
Cable Length Options 1 Meter, 2 Meters, or 3 Meters
Resolution 9 to 12 Bit (Configurable)
Microcontroller Compatibility Arduino, Raspberry Pi, ESP8266, ESP32
Probe Diameter 6mm
Waterproof Rating IP68 (Probe Head Only)

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 5/5

Accurate Readings

Compared it to a calibrated laboratory thermometer and the readings were spot on within the specified accuracy.

A

Anonymous

Mar 31, 2026

Rating: 5/5

Truly Waterproof

Submerged the probe in a water tank for a week to test it. No corrosion or signal loss detected.

A

Anonymous

Mar 22, 2026

Rating: 4/5

Great Value for Money

Bought the 3-meter cable version. Signal strength remains strong even at full length. Recommended.

A

Anonymous

Jan 23, 2026

Rating: 5/5

Excellent for Arduino Projects

Works perfectly with my home automation setup. The wiring is straightforward and the readings are stable.

A

Anonymous

Jan 21, 2026

Rating: 4/5

Good Quality Probe

The stainless steel feels very durable. The cable is a bit stiff but manageable for most installations.

5 FAQ

Q: Can I connect multiple sensors to one GPIO pin?

A: Yes, the 1-Wire protocol allows you to connect multiple sensors on the same data bus using unique addresses.

Q: Does this sensor require a pull-up resistor?

A: Yes, we recommend using a 4.7k ohm resistor between the data line and VCC for stable communication.

Q: Which library do you recommend for Arduino?

A: The OneWire library combined with the DallasTemperature library by Miles Burton is the standard choice.

Q: Is it compatible with 3.3V logic levels?

A: Yes, the DS18B20 operates between 3.0V and 5.5V, so it works safely with 3.3V microcontrollers.

Q: Is the entire cable waterproof or just the probe?

A: Only the stainless steel probe head is waterproof (IP68). The cable junction and wires should not be submerged.

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