ATMOS-14 4-in-1 Temperature & Relative Humidity Sensor

  • Model: E-240-ATMOS-14
  • Manufactured by: Meter (formerly Decagon / UMS)


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Product Description:
Thousands of engineers and ecologists already depend on the ATMOS 14 for straightforward measurements. Whether you’re using the EM60G to look at plant emergence, leaf area index, or fractional interception, there isn’t an easier way to benchmark your data. The ATMOS 14 is a versatile, low-maintenance, and fast sensor designed to make taking temp/RH measurements simpler and therefore less work.

Features
  • Four measurements in one sensor
  • Plug and play capability
  • Collect data remotely when used with the EM60G data logger
  • Compact
  • Teflon screen protects the sensor from weather
  • Fast response
  • Integrated temperature for accuracy
Specifications

RELATIVE HUMIDITY
Range
0 to 100% RH
Accuracy
Sensor measurement accuracy is variable across a range of temperatures. Refer to the chart in Figure 1 to determine the accuracy specification for the ATMOS 14 sensor.
Equilibration time
(τ, 63%)
(τ, 63%): < 40 s (response time in 1 m/s air stream)
Hysteresis
< 1% RH typical
Long term drift 
< 0.5% RH/year typical
TEMPERATURE
Range 
-40 to 80 °C
Resolution 
0.1 °C
Accuracy 
Sensor measurement accuracy is variable across a range of temperatures. Refer to the chart in Figure 2 to determine the accuracy specification for the
ATMOS 14 sensor
Equilibration time (τ, 63%) 
< 400 s (response time in 1 m/s air stream)
Long term drift 
< 0.04 °C / year typical
VAPOR PRESSURE
Range 
0 to 47 kPa
Resolution
0.001 kPa
Accuracy
Sensor measurement accuracy is variable across a range of temperatures and RH. Refer to the chart in Figure 3 to determine the accuracy specification for the ATMOS 14 sensor.
BAROMETRIC PRESSURE 
Range 49 to 109 kPa
Resolution 0.01 kPa
Accuracy 0.4 kPa
GENERAL
Dimensions
1.96 cm (dia) x 5.4 cm (h)
Power requirements
3.6 to 15 VDC 0.03 mA quiescent, 4 mA during 300 ms measurement
Response (measurement) time 
300 ms
Output 
METER digital or SDI-12
Operating temperature
-40 to 80 °C
Connector types
3.5 mm (stereo) plug or stripped and tinned lead wires (pigtail)
Cable length 
5 m standard; custom cable length available upon request
Software compatibility 
   ECH2O Utility (rev. 1.74), DataTrac (rev 3.11+)