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Company Info
Shenzhen Isweek Ltd Shenzhen Isweek Ltd

Street Address: 16 Floor, Building #3, Zhongke Mansion, Gaoxin South 1st Rd, Hi-Tech Park, Nanshan

City: Shenzhen

Province: Guangdong

Country/Region: China

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Smart SDI-12/RS-485 Temperature Sensor

Smart SDI-12/RS-485 Temperature Sensor

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Market Type:  After Market

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Smart SDI-12/RS-485 Temperature Sensor DESCRIPTION
The Smart Temp is a high precision digital temperature sensor that meets USGS guidelines. It features the ability to automatically sample temperature and calculate minimum, maximum, and average temperatures on a flexible time scale.

This sensor is ideal for high-accuracy readings in water, soil, and air. It features fully-potted components, robust PVC Type II housing, and marine-grade stainless steel, making the sensor ideal for harsh environments. Model 51163 is small enough to easily deploy through standard 1 (2.5cm) PVC conduit with 8 (20.3cm) factory bend corners. It also offers a loop hole which can be used to mount weights or pull the sensor through pipes or other small areas.

SDI-12 output provides universal compatibility with any SDI-12-enabled data logger and low power applications, or use the standard SDI-12 command set over an RS-485 physical interface for applications that require long cable runs or many sensors.

Smart SDI-12/RS-485 Temperature Sensor FEATURES

  • Automatic minimum, maximum, and average calculations
  • RS-485 and SDI-12 interfaces (auto- detecting)
  • SDI-12 Ver 1.4 compliant
  • Firmware updates through RS-485
  • NIST certification available
  • High-accuracy temperature measurement
  • Extremely low current draw
  • Works in water, soil, or air
  • Durable 316 grade stainless steel tine for easy soil insertion (model 51126)
  • Suitable for freshwater or marine applications
  • Fully potted electronics
  • Tough PVC Type II housing
  • Celsius and Fahrenheit output
  • No calibration required

Smart SDI-12/RS-485 Temperature Sensor TECHNICAL SPECIFICATIONS
Sensor Silicon bandgap temperature sensor
Output SDI-12 v.1.4 and RS-485
Measurement Range: -40°F to +140°F (-40°C to +60°C)
Accuracy ±0.18°F (±0.1° C) from 23°F to 122°F (-5°C to +50°C)
±0.2°C outside this range
Resolution 0.01°C
Current Draw Idle: 10 µA (SDI-12), 0.6 mA (RS485)
Sample: 6 mA for 10 ms
Transmit/receive: 6 mA for ~ 100 ms (depends on length of data)
Peak: 30 mA for 1 ms during initial power-on
Units Configurable: Celsius or Fahrenheit
Dimensions 4.95 (125.7 mm)  L x 0.7 (17.8 mm) (#51126)
3.56 (90.4 mm)  L x 0.70 (17.8 mm)  (#51163)

Smart SDI-12/RS-485 Temperature Sensor ORDERING INFORMATION
PART # DESCRIPTION
51126-025 Smart Digital Temperature Sensor, metal tine, 25 cable
51126-050 Smart Digital Temperature Sensor, metal tine, 50 cable
51126-100 Smart Digital Temperature Sensor, metal tine, 100 cable
51163-025 Smart Digital Temperature Sensor, compact housing, 25 cable
51163-050 Smart Digital Temperature Sensor, compact housing, 50 cable
51163-100 Smart Digital Temperature Sensor, compact housing, 100 cable
93924-002 Cable for custom lengths in excess of 100, specify length needed when ordering

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