The DF Robot Waterproof DS18B20 Temperature Sensor is a reliable digital sensor designed for accurate temperature measurement in wet or remote environments. It features a stainless steel probe for enhanced durability and a 1-Wire interface, which allows multiple sensors to share a single data line without signal degradation. This makes it ideal for applications such as HVAC systems, industrial monitoring, and environmental sensing.

With an accuracy of ±0.5℃ between -10℃ and +85℃ and an extended operating range of -55℃ to 125℃, this sensor ensures precise readings in various conditions. It operates on 3.0V to 5.5V and comes with a pluggable terminal sensor adapter for secure and convenient wiring. The 90cm PVC-jacketed cable is suitable for most installations, but it is recommended to keep it under 100℃ for long-term reliability.

Quick Spec

• Operating voltage: 3.0V to 5.5V
• Accuracy: ±0.5℃ (-10℃ to +85℃)
• Temperature range: -55℃ to 125℃ (-67℉ to +257℉)
• Resolution: 9 to 12-bit selectable
• Interface: 1-Wire protocol (single digital pin required)
• Unique ID: 64-bit serial number for multiple sensor use
• Query time: <750ms
• Alarm system: Programmable temperature-limit alert
• Wiring:
• Red: VCC
• Black: GND
• Yellow: DATA (requires 4.7KΩ pull-up resistor if not using the Plugable Terminal sensor adapter)
• Probe: Stainless steel (6mm x 35mm)
• Cable: 90cm length, 4mm diameter

Resources

• Product Page
• Product Wiki
• Sample Code

Shipping list

• 1 x Waterproof DS18B20 Digital temperature sensor
• 1 x Terminal sensor adapter
• 1 x Digital sensor cable