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Environment Products

Data loggers / telemetry

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ZL6

Easier, more advanced, and more robust, the ZL6 introduces cloud-based data delivery, Bluetooth® configuration, firmware-over-the-air updates, and integrated metadata.
  • Configure via Bluetooth
  • Stores 80,000+ records
  • Simple setup
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ZL6 Pro

The ZL6 Pro puts data collection and management on auto-pilot, so you can focus on what you love.
  • Automated 15-minute real-time data uploads
  • 3 year subscription included
  • Simple setup
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ZL6 Basic

If you need an ultra-robust, entry-level data logger that is easy to set up and practically maintenance free, you’ll love the ZL6 Basic.
  • Download data via Bluetooth to your smartphone
  • Stores 30,000+ records
  • Ultra-rugged and durable construction
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ZSC Bluetooth

During sensor installations, the ZSC lets you monitor a sensor reading as it is installed. Get real-time, wireless readings via Bluetooth on your smartphone with the push of a single button.
  • Readings on your smartphone
  • Instantly detect installation problems
  • Assign SDI-12 addresses to digital sensors
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Weather

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ATMOS 14

The ATMOS 14 will rapidly and reliably measure air temperature, relative humidity, barometric pressure, and vapor pressure, making benchmarking quick and hassle free.
  • Four measurements in one sensor
  • Collect data remotely when used with the ZL6 data logger
  • Fast response
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ATMOS 22

Accuracy. Dependability. Affordability. You get all three with the ATMOS 22 ultrasonic wind anemometer.
  • Easy installation
  • All data transmitted over a single wire
  • Connect to ZL6 for data capture and management
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ATMOS 41

The world's best all-in-one weather station for atmospheric measurements that doesn't limit you with other sensors.
  • Measures 12 weather variables
  • Designed for continuous deployment in harsh climates
  • Connect to ZL6 for data capture and management
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Soil water content / soil temperature

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TEROS 10

The new, ultra-robust TEROS 10 soil moisture sensor delivers scientific accuracy and reliability at a price that makes large sensor networks economically practical.
  • Long-life soil moisture sensor
  • Robust epoxy body means it lasts for 10+ years in the field
  • Easy integration with third-party systems
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TEROS 11

The TEROS 11 delivers a large volume of influence, reduced sensor-to-sensor variability, and a near-bulletproof form factor, which lasts up to 10 years in the field.
  • Long-life soil moisture and temperature sensor
  • Increased volume of influence (1010 mL)
  • Robust, epoxy body for tough field conditions
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TEROS 12

The all-new TEROS 12 soil moisture sensor delivers an excellent price-to-performance ratio in a device that is easy to use and includes electrical conductivity.
  • Long-life soil moisture, temperature, and EC sensor
  • Increased volume of influence (1010 mL)
  • Robust, epoxy body for tough field conditions
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TEROS Borehole Installation Tool

TEROS Borehole Installation Tool was engineered to provide easier, faster, and better sensor installation at greater depths.
  • Make installation something you can look forward to
  • Get better soil-to-sensor contact with less effort
  • Install sensors at depths farther than the arm can reach
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ECH20 EC-5

The ECH2O EC-5 soil moisture sensor delivers research-grade accuracy at a price that makes large sensor networks economically practical.
  • Simple soil moisture sensor
  • Minimizes salinity and textural effects
  • Easy integration
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ECH20 10HS

The 10HS soil moisture sensor is better at characterizing spatial variability as it averages soil moisture over a greater volume.
  • Large volume soil moisture sensor
  • Low power consumption
  • High measurement frequency
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MAS-1

The MAS-1 is a current-based soil moisture sensor with ultra-long cable lengths.
  • Current-based soil moisture sensor
  • Research-grade accuracy
  • Low cost individual sensors for large sensor networks
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TEROS 06

The ultra-robust TEROS 06 is a research-grade temperature profile probe that delivers accurate soil temperature data for better models and predictions.
  • Measures six depths exceeding WMO recommendations
  • Temp sensors at -5 cm, -10 cm, -20 cm, -30 cm, -50 cm, -100 cm
  • Temperature accuracy: ±0.1°C
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RT-1

Easy-to-use sensor for measuring the temperature of soil or other materials.
  • Easy-to-install soil temperature sensor
  • Weatherproof for long-term use
  • Remote data in real time
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Soil water potential / soil suction

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TEROS 21

The TEROS 21 matric potential sensor is incredibly easy to use and surprisingly affordable.
  • Full-range soil water potential sensor
  • Accurate. Easy to use. No recalibration.
  • Onboard temperature measurement
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TEROS 31

Nobody in the world makes a tensiometer this small, this simple, or this precise.  Trust the TEROS 31 for fast, accurate point to point water potential in all your tightest spaces.
  • Soil water potential for the lab
  • Small and fast with extended range
  • Accurate zero-tension reading
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TEROS 32

The new plug-and-play TEROS 32 tensiometer combines legendary precision engineering with the power of ZENTRA Cloud, giving you easier, faster, more accurate data in near-real time.
  • Field water potential + integrated temperature sensor
  • Direct measurement with no need for calibration
  • Year-round operation when installed deeper than 30 cm
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Hydrology

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SATURO

We think you should spend less time on complex processes and more time being productive. That’s why we automated almost everything in the new SATURO infiltrometer.
  • Measures field saturated hydraulic conductivity
  • Fully automated and portable infiltrometer
  • Capable of unattended measurement
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MINI DISK INFILTROMETER

Get a more complete picture of highly variable unsaturated hydraulic conductivity with the infiltrometer that gives you more measurements for less time, less effort, less expertise, and less money.
  • Easy field measurement of unsaturated hydraulic conductivity
  • Compact and simple
  • Reliable. Fast setup.
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HYDROS 21

Measure water depth, temperature, and electrical conductivity.  Low-complexity, low-maintenance, and low-cost design saves you time, hassle, and money.
  • Measure water depth, temperature, and electrical conductivity
  • Low cost. Durable. Simple to use.
  • Easy remote data in real time
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G3 Lysimeter

The Drain Gauge G3 is an easy-to-use lysimeter specifically designed to measure deep drainage over larger areas at an affordable cost.
  • Affordable deep drainage measurement with large sampling volumes
  • Completely sealed system protects from high water tables
  • Monitor solute fluxes with optional EC sensor
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Drain Gauge G3 AutoPump

The AutoPump automatically drains the Drain Gauge G3 reservoir into bottles for later collection or away from the measurement area.
  • Automatically drains the Drain Gauge G3 reservoir
  • Designed for remote and high drainage sites
  • Connect to a data logger
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Lab instruments

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PARIO

A revolutionary new method for soil particle analysis. Automated, simple, and fast—with much less human error than traditional methods.
  • Automated Soil Particle Size Analysis
  • Lower measurement duration of 2.5h
  • Estimated error: an incredible +/- 0.5%
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HYPROP 2

Automated calculation of high-resolution soil moisture release curves and unsaturated hydraulic conductivity—in just days, instead of months.
  • Soil moisture release curves in days, not months
  • Curves with hundreds of points
  • Precise and robust. Easy to handle and flexible.
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WP4C

The WP4C measures water potential by determining the relative humidity of the air above a sample in a sealed chamber (conforms to ASTM D6836).
  • Soil water potential lab instrument with fast equilibration
  • Durable and easy to clean
  • Easy to calibrate with saturated salt solutions
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KSAT

The KSAT is the only easy-to-use automated setup for taking saturated hydraulic conductivity measurements in the lab. Best of all, it’s completely integrated.
  • Simplified saturated hydraulic conductivity in the lab
  • Everything completely integrated. Removes human error.
  • Easy-to-use software
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VAPOR SORPTION ANALYZER

For understanding complex soil issues like clay behavior, specific surface area, and more the VAPOR SORPTION ANALYZER is your simplest, most accurate option.
  • Fast soil-water characteristic curves with hundreds of points
  • Works in the dry soil range (-10 to -475 MPa)
  • Set up a test in five minutes
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VARIOS

VARIOS automatically generates complete, high-resolution dry down curves with less effort and less cost, so you can focus on what you love.
  • Automated measurement saves time and effort
  • Two measurement methods: continuous and point by point
  • Automatic temperature drift correction
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Thermal properties

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TEMPOS

More accurate than any thermal properties analyzer in its class, with an incredible one-minute read time.
  • Accurate thermal properties analyzer
  • New one-minute read times
  • ASTM 5334- and IEEE 442-compliant
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VARIOS

VARIOS automatically generates complete, high-resolution dry down curves with less effort and less cost, so you can focus on what you love.
  • Automated measurement saves time and effort
  • Two measurement methods: continuous and point by point
  • Automatic temperature drift correction
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Plant and canopy

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PHYTOS 31

The PHYTOS 31 leaf wetness sensor is not only a more accurate instrument, it’s also the easiest to set up, making it a simple and straightforward solution.
  • Leaf wetness sensor even detects ice formation
  • Sensitivity without false positives
  • Mimics a real leaf, so moisture will condense/evaporate as it would on a normal leaf
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ACCUPAR LP-80

The LP-80 is a highly accurate way to determine canopy growth and canopy light interception (PAR and LAI), along with calculating fractional interception and crop coefficient.
  • Measures canopy PAR
  • Automatically calculates Leaf Area Index in real-time
  • Above-canopy sensor enables simultaneous above- and below-canopy PAR measurements
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SC-1 Leaf Porometer

Quick measurements. Easy-to-use engineering. Low cost in the short and the long run. The SC-1’s breakthrough steady-state technology makes it the best for measuring stomatal conductance.
  • Easy stomatal conductance measurements
  • High speed results (readings in 30 seconds)
  • Straightforward calibration and no moving parts
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NDVI / PRI Sensor

Apogee NDVI and PRI sensors combine an ultra-rugged form with sophisticated cloud data delivery for an unbeatable price-to-performance ratio.
  • Continuously monitor NDVI and PRI remotely
  • Built for long-term exposure to the elements
  • Easy to use and low cost
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PAR Sensor

The SQ-521 PAR Sensor provides accurate and cost-effective measurement of photosynthetically active radiation (PAR) from all light sources used to grow plants. 
  • High-quality photosynthetically active radiation (PAR) measurements
  • Easy setup. Easy data access.
  • Accurate and cost-effective measurements
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IRT

The IRT infrared thermometer monitors surface temperature by measuring the thermal energy radiated from any surface.
  • Easy surface temperature measurements in real time
  • Many field of view options
  • Accurate, rugged, lightweight, weatherproof
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PYR Sensor

The PYR solar radiation sensor is designed for continuous outdoor use and is completely waterproof and submersible.
  • Accurate, easy-to-use pyranometer
  • Measure total solar radiation
  • Weatherproof for long-term use
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Net Radiation Sensor

If you need research-grade net radiation accuracy at an affordable price, then you’ll love the easy-to-use Apogee Net Radiometer.
  • Reliable net radiation measurements in real time
  • Research-grade accuracy for less cost
  • Easy, remote data access
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Ultraviolet (UV) Sensor

The low-cost Apogee Ultraviolet (UV) Sensor is a scientific-grade sensor that provides the accuracy you need for less. Access remote data in real-time, wherever you are.
  • Ultraviolet sensor measures total radiation from 300 to 400 nm
  • Simple, self-cleaning, and tough
  • Easy, remote data access
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Supporting sensors

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SO-411 Oxygen Sensor

The rugged, reliable SO-411 Oxygen Sensor is perfect for the lab or field. And the best part? Easy remote data access through ZENTRA Cloud. 
  • Measure gaseous oxygen in the lab or field
  • Ruggedized and robust
  • Plug and play technology—remote data access
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ECRN-100 Rain Gauge

High-resolution rain gauge for measuring precipitation and for use in scientific research.
  • Research-grade, high resolution rain gauge
  • Dual spoon mechanism for better resolution
  • Durable
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ECRN-50 Rain Gauge

Low-resolution rain gauge for measuring irrigation events.
  • Low-resolution rain gauge for irrigation event monitoring
  • Configure as volume gauge
  • Durable
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ECT

An easy-to-use research-grade air temperature sensor for measuring the temperature of air.
  • Easy-to-use air temperature sensor
  • Weatherproof for long-term use
  • Remote data in real time
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ES-2

The ES-2 is designed to measure the electrical conductivity of water in a pipe or tank.
  • Measure the electrical conductivity of water in a pipe or tank
  • Pair it with a TEROS 12 soil moisture sensor
  • Understand the salts remaining in your soil or substrate.
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PS-1

The PS-1 Irrigation Pressure Switch adds irrigation water on/off data into the soil moisture data set.
  • Adds irrigation water on/off data
  • Use with soil moisture sensors to monitor irrigation
  • Know your irrigation times
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FM-25 Flow Meter

The FM-25 combines the accuracy of positive displacement meters with the reliability and economy of nutating disc technology.
  • Accuracy of positive displacement meter
  • reliability and economy of nutating disc technology
  • includes a pulse transmitter for digital output
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D1 DENDROMETER

The D1 Dendrometer is a simple tool to manually measure changes in the circumference of tree stems over time.
  • Made of low-friction, low thermal expansion Astralon plastic
  • No need to convert circumference to diameter
  • A spring mechanism that allows the tape to expand as the tree grows

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