METER ATMOS 14 , 4 in 1 Sensor – Temp/RH/Barometric Pressure/Vapor Pressure

Microclimate measurement made simple

If you’re doing a microclimate or evapotranspiration study, you may need up to four extra sensors to get important measurements that will benchmark your data. Not to mention you have to face the hassle of getting all those sensors integrated into your system. What you need is something simpler. With this in mind, we engineered the ATMOS 14 to be four sensors in one—air temperature, relative humidity, barometric pressure, and vapor pressure. And best of all, it’s plug and play with our ZL6 data logger.

With the ATMOS 14, all your bases are covered

Thousands of engineers and ecologists already depend on the ATMOS 14 for straightforward measurements. Whether you’re using the ZL6 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.

Plug it in, and walk away

Despite its minimalist design, the ATMOS 14 provides maximum value. While other sensors require wiring and programming, the ATMOS 14 simply plugs into the ZL6 (It’s also compatible with third-party data loggers). There’s no having to figure out complicated instructions. Just mount the sensor on your data logger mast, plug it in, and walk away.

Measures a lot. Requires very little effort.

The ATMOS 14 is low-maintenance. It gives accurate vapor pressure and RH without a lot of cleaning. Plus it’s weatherproof, meaning it will last a long time in the field. Another helpful feature is the compact shape that fits into tight spaces, leaving room on a mast for other sensors.

Readings don’t get any more rapid

Because the ATMOS 14 is plug and play, setup is quick. And responses are equally fast. Thanks to a Teflon protection screen that keeps liquid water out, but vapor moving freely through, it responds rapidly while keeping dust and liquid water off the sensor. Both features add up to time saved on your part.

For everything it measures, there’s not much to it

With ATMOS 14, all your basic microclimate measurements are covered using a small, simple integrated sensor. This versatile, low-maintenance sensor will rapidly and reliably measure air temperature, relative humidity, barometric pressure, and vapor pressure, making benchmarking quick and hassle-free.

RELATIVE HUMIDITY (RH)

Range : 0 to 100% RH
Resolution : 0.1% RH
Accuracy : Sensor measurement accuracy is variable across a range of RH
Equilibration time (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
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 : 0.01 kPa
Accuracy : Sensor measurement accuracy is variable across a range of temperatures and RH

BAROMETRIC PRESSURE

Range : 50 to 110 kPa
Resolution : 0.01 kPa
Accuracy : ±0.4 kPa

COMMUNICATION SPECIFICATIONS

Output : DDI serial or SDI-12 communications protocol
Data logger compatibility : METER data loggers (ZL6, EM50/60 series) or any data acquisition system capable of 3.6- to 15-VDC power and serial or SDI-12 communication

Dimensions

Diameter : 2.0 cm (0.8 in)
Height : 5.4 cm (2.1 in)

Operating temperature range

Minimum : –40 °C
Maximum : +80 °C

Cable length

5 m (standard)
75 m (maximum custom cable length)

Connector types

3.5-mm stereo plug connector or stripped and tinned wires

ATMOS 14 Quick Start

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ATMOS 14 Integrator Guide

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