DS18B20 Digital Temperature Sensor Probe with 3M Waterproof Cable - 7Semi

Overview

• Sensor Type: Digital temperature sensor with waterproof stainless'steel probe.

• Brand/Model: 7Semi DS18B20 series with 3m waterproof cable.

• Interface: Uses 1Wire digital protocol only one data line needed for communication with microcontrollers.

• Compatibility: Works with Arduino, Raspberry Pi, ESP32, STM32, and other 3.0V5.5V systems.

Key Features

• Waterproof Probe: Stainless steel, corrosion'resistant probe suitable for wet environments and outdoor use.

• Long Cable (3m): Flexible placement even for remote sensors (e.g., tanks, pools, outdoor setups).

• 0.5C precision (especially from 10C to +85C).

• Wide Temperature Range: Operates approximately from 55C up to +125C.

• 1Wire Digital Output: Simplifies wiring only a single data wire plus power and ground.

• Multiple Sensors on One Line: Each DS18B20 has a unique 64bit ID, allowing many sensors on the same data line.

• Selectable Resolution: Can be configured from 9bit to 12bit resolution for more precise readings.

Technical Specifications

• Operating Voltage: 3.0V to 5.5VDC compatible with most microcontroller systems.

• Output: Digital temperature values via 1Wire protocol no analog conversion needed.

• Cable: 3m waterproof'rated cable for distance applications.

• Accuracy: 0.5C within typical range (10C to +85C).

• Probe Material: Stainless steel for ruggedness and corrosion resistance.

• Temperature Range: 55C to +125C for broad environment sensing.

How It Works

• Powered from 3.0V5.5V supply (VCC and GND).

• The 1Wire DATA line connects to a microcontroller digital pin with a 4.7k pull'up resistor (required for stable communication).

• The microcontroller requests temperature readings; the sensor returns digital values via the one'wire bus.

Typical Uses

This waterproof DS18B20 probe is suitable for professional and hobby applications such roponic, or other water temperature sensing

IoT projects and smart farming systems

Industrial temperature monitoring

HVAC systems and home automation

Soil temperature sensing and greenhouse control

Notes / Tips

• Waterproof Only Probe: The probe and cable are waterproof, but the microcontroller connection and pull'up resistor should be protected from water.

• Multiple Units on One Wire: You can connect multiple DS18B20 sensors in parallel on one data line (unique IDs differentiate the