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Temperature and Relative Humidity Sensor CS215

The CS215 is a temperature and relative humidity sensor that uses a Swiss-made digital humidity and temperature element that makes accurate and stable measurements. The element is based on Sensirion's CMOSens technology, which has been tested for mor

Temperature and Relative Humidity Sensor CS215

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Description

The CS215 is a temperature and relative humidity sensor that uses a Swiss-made digital humidity and temperature element that makes accurate and stable measurements. The element is based on Sensirion's CMOSens technology, which has been tested for mor

Specification

Specifications:

  • Sensing Element: Sensirion SHT75
  • Communication Standard: SDI-12 V1.3 (responds to a subset of commands)
  • Supply Voltage: 6 to 16 Vdc (typically powered by datalogger’s 12 V supply)
  • Typical Current Drain: 120 μA (quiescent); 1.7 mA (measurement; takes 0.7 s)
  • EMC Compliance: Tested and conforms to IEC61326:2002
  • Operating Temperature: -40° to +70°C
  • Length including strain relief: 18.0 cm (7.1")
  • Diameter at sensor tip: 1.2 cm (0.5")
  • Diameter at cable end: 1.8 cm (0.7")
  • Weight w/10 ft cable 150 g (5.3 oz)

Relative Humidity

  • Measurement Range: 0 to 100% RH (-20° to +60°C)
  • Output Resolution: 0.03% RH
  • Accuracy (at 25°C):
    • ±2% (10% to 90% range),
    • ±4% (0% to 100% range)
  • Short Term Hysteresis: < 1% RH
  • Temperature Dependence: better than ±2% (-20° to 60°C)
  • Stability (Typical): ±1.0% per year
  • Response Time with Filter: < 20 s (63% response time in still air)
  • Calibration Traceability: NIST and NPL standards

Temperature

  • Measurement Range: -40° to +70°C
  • Output Resolution: 0.01°C
  • Accuracy:
    • ±0.3°C at 25°C;
    • ±0.4°C (+5° to +40°C);
    • ±0.9°C (-40° to +70°C)

Services

measuring relative humidity and temperature of air

Status

free for rental

Funding Source

National Research Centers (VNPC) -
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