Waterproof Temperature Sensor 18B20

The Waterproof 18B20 Temperature Sensor is a high precision digital temperature probe designed for reliable measurements in liquids, humid environments, and outdoor applications.

Encased in a stainless steel waterproof probe, this sensor is ideal for monitoring temperature in water tanks, aquariums, hydroponics systems, weather stations, boilers, and industrial projects.

The 18B20 uses the 1 Wire digital communication protocol, meaning multiple sensors can share the same data line, perfect for distributed temperature monitoring with minimal wiring. Each sensor has a unique 64-bit ID, allowing you to connect several probes to a single microcontroller pin.

Unlike analog temperature sensors, the 18B20 provides direct digital readings, ensuring high accuracy and noise resistance, especially in longer cable installations.

Whether you're building an IoT temperature monitoring system, a smart greenhouse, or an educational electronics project, this waterproof probe is a robust and reliable choice.

Highlights:

• Waterproof stainless steel probe design.
• Digital temperature sensor (no analog conversion needed).
• Uses 1-Wire protocol, multiple sensors on one pin.
• Unique 64-bit serial ID per sensor.
• Long cable for flexible installation.
• Compatible with Arduino, ESP32, Raspberry Pi & more.

Specifications:

• Operating Voltage: 3.3 -5V.
• Sensor Type: 18B20 digital thermometer.
• Temperature Range: ~‑55°C to +125°C.
• Accuracy: ~±0.5°C over ­10°C to +85°C.
• Cable Length: 2m or 1m with Adapter 3P.
• Probe Size 1m: ~6×35mm, IP67 waterproof stainless steel.
• Probe Size 2m: ~5×25mm, IP67 waterproof stainless steel.
• Adapter Dimensions: ~24×20×11mm.
• Adapter Interface: 3-pin (VCC, GND, DAT).

Ideal For:

• 💧 Water tank & aquarium temperature monitoring.
• 🌱 Hydroponics & greenhouse systems.
• 🌍 IoT environmental monitoring stations.
• 🔥 Boilers & heating systems.
• 🎓 Arduino & STEM education projects.

Note:

• Product appearance may vary slightly from the images shown.
  
• Text or markings on the sensor may differ depending on the batch.