7Semi DS18B20 Digital Waterproof Temperature Sensor Probe 3M Cable

The 7Semi DS18B20 Digital Waterproof Temperature Sensor Probe (3M Cable) is a high-precision digital temperature sensor encased in a rugged, stainless-steel waterproof housing, ideal for accurate temperature measurement in wet, outdoor, and industrial environments. It uses the Dallas/Maxim DS18B20 sensor, which communicates via the One-Wire digital interface, allowing multiple sensors to be connected to a single data line. With its pre-wired 3-meter cable and durable design, this sensor is perfectly suited for liquid temperature monitoring, environmental sensing, and IoT-based smart systems.

Technical Specifications:

• Sensor Model: DS18B20 (Digital Thermometer)
  
• Measurement Range: -55°C to +125°C
  
• Accuracy: ±0.5°C (typical over -10°C to +85°C range)
  
• Resolution: Programmable from 9-bit to 12-bit (default 12-bit)
  
• Communication Interface: One-Wire digital protocol
  
• Operating Voltage: 3.0 V to 5.5 V
  
• Output Type: Digital (open-drain)
  
• Cable Length: 3 meters
  
• Cable Type: 3-wire, PVC-insulated (Red: VCC, Black: GND, Yellow: DATA)
  
• Probe Material: Stainless steel, waterproof and corrosion-resistant
  
• Probe Dimensions: Approx. 6 mm diameter, 50 mm length
  
• Power Consumption: <1 mA (active), <1 µA (standby)
  
• Response Time: Fast thermal response in liquid or air
  
• Operating Temperature: -55°C to +125°C
  
• Storage Temperature: -55°C to +125°C
  
• Compatibility: Works with Arduino, Raspberry Pi, ESP32, STM32, and other microcontrollers

Features:

• Fully waterproof stainless-steel probe for use in harsh environments
  
• High-accuracy digital temperature measurement with no calibration needed
  
• One-Wire interface allows multiple sensors on a single data line
  
• Long 3-meter cable provides flexibility for remote sensing installations
  
• Operates with 3.3 V or 5 V logic systems
  
• Calibrated digital output — no need for analog signal conversion
  
• Compact and durable design ideal for long-term outdoor and industrial use
  
• Fast response time and stable performance over a wide temperature range
  
• Simple integration with popular microcontrollers and IoT platforms

Applications:

• Liquid temperature measurement (water, oil, and chemical solutions)
  
• Industrial and HVAC temperature monitoring
  
• IoT and smart agriculture temperature sensing
  
• Weather stations and environmental monitoring systems
  
• Food storage, refrigeration, and cold chain management
  
• Scientific and laboratory temperature measurement setups
  
• Soil and greenhouse temperature tracking
  
• Embedded and educational electronics projects requiring digital temperature sensing