Canada’s Instrumentation Leader Since 1946.

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

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 […]

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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

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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

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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+)

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