Data logger & telemetry

A photograph of a front view of a ZL6 data logger
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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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

A photograph of a front view of a 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

A photo of the ZSC bluetooth sensor interface
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

Weather

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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

A photo of the ATMOS 41W all in one weather station
At METER, we think getting your data shouldn't be complicated or costly. And we think wireless should actually be wireless. That's why we made the ATMOS 41W.
  • A true wireless weather station ideal for long-term, remote installations
  • Incredible 10-minute installation time
  • Completely solar powered

A photo of the ATMOS 22 Ultrasonic Anemometer
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

A photo of an ATMOS 14 Temperature and Humidity Sensor and More
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

A photo of the SQ-521 PAR Sensor Continuous PAR Measurement Made Easy
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

A photo of the PYR sensor pyranometer
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

A photo of the SN-500 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

A photo of the ECRN-100 Rain Gauge high resolution
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

A photo of the ECRN-50 rain gauge low resolution
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.
  • Easy-to-use air temperature sensor
  • Weatherproof for long-term use
  • Remote data in real time

Soil water content / soil temperature

A photo of the TEROS 10 soil moisture sensor
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

A side profile photo of the TEROS 11 soil moisture sensor
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

A TEROS 12 soil moisture sensor
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

A photo of the TEROS 54 soil moisture profile probe
We designed the TEROS 54 soil moisture profile probe to make every step of your measurement process easier—without sacrificing accuracy or durability.
  • Multi-depth profile probe measures water content and temperature
  • Easy plug-and-play operation
  • See all your data remotely in real-time

A photograph of the ECH20 EC-5 soil moisture sensor
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

ECH20 10HS Large Volume Soil Moisture Sensor
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

A photo of the MAS-1 4-20 milliamp soil moisture sensor
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

A photo of the TEROS 06 Soil Temperature Profile Probe
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

A photo of the TEROS borehole installation tool with a TEROS 12 mounted in it
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

Soil water potential / soil suction

A TEROS 21 soil water potential sensor
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

A photo of a TEROS 31 Lab Tensiometer
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

A photo of the TEROS 32 advanced field tensiometer
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

Hydrology

A photo of the SATURO field saturated hydraulic conductivity infiltrometer
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

A photo of the mini disk infiltrometer unsaturated hydraulic conductivity
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.

A photo of a HYDROS 21 conductivity, temperature, and depth sensor
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

A photo of the Drain Gauge G3 Lysimeter Dependable Deep Drainage
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

A photo of ES-2 electrical conductivity and temperature sensor
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.

FM photo of the 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

Lab instruments

A photo of the PARIO Automated soil particle size analyzer
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%

A photo of the HYPROP 2 soil moisture release curve laboratory instrument
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.

A photo of a WP4C soil water potential lab instrument
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

A photo of the KSAT saturated hydraulic conductivity laboratory instrument
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 & ASTM D2434 compliant

A photo of the 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

A photo of VARIOS automated thermal dryout curves laboratory instrument
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

Thermal properties

A photo of the TEMPOS Thermal properties analyzer
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

A photo of VARIOS automated thermal dryout curves laboratory instrument
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

Plant and canopy

A photo of the PHYTOS 31 Leaf Wetness Sensor
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

A photo of the controller unit for the LP-80 PAR and LAI measurement tool
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

A photo of the 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

A photo of the NDVI 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

A photo of the SQ-521 PAR Sensor Continuous PAR Measurement Made Easy
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

A photo of the IRT infrared thermometer
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

A photo of the PYR sensor pyranometer
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

A photo of the SN-500 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

A photo of the SU-221 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

Supporting sensors

A photo of the NDVI 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

A photo of the SQ-521 PAR Sensor Continuous PAR Measurement Made Easy
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

A photo of the IRT infrared thermometer
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

A photo of the PYR sensor pyranometer
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

A photo of the SN-500 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

A photo of the SU-221 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

A photo of the 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

A photo of the 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

A photo of the ECRN-100 Rain Gauge high resolution
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

A photo of the ECRN-50 rain gauge low resolution
Low-resolution rain gauge for measuring irrigation events.
  • Low-resolution rain gauge for irrigation event monitoring
  • Configure as volume gauge
  • Durable

A photo of ES-2 electrical conductivity and temperature sensor
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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ECT
An easy-to-use research-grade air temperature sensor.
  • Easy-to-use air temperature sensor
  • Weatherproof for long-term use
  • Remote data in real time

A photo of a PS-1 irrigation pressure switch
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

FM photo of the 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

A photo of the 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

A photo of the VS-Pro tensiometer-controlled vacuum system with LCD display
The VS-pro series of vacuum systems are capable of applying a constant or tension-controlled vacuum for long-term monitoring projects. Keyboard display allows for status checks and configuration without hooking it up to your PC.
  • Long-term monitoring
  • Defined pore water sampling
  • Tension-controlled sampling

A photo of the Vacuporter portable electric vacuum
This portable vacuum has a rugged case and uses a powerful pump and rechargeable battery, which make it easy to collect pore water samples at remote locations.
  • Qualitative analysis of soil water
  • Low cost
  • Easy handling

A photo of the SPE20 suction cup with shaft storage
The SPE20 allows for water and solute collection down to depths of 8 meters that could not normally be collected from other pore water samplers.
  • Cost effective; sampling bottles are not needed
  • Extracted soil water is stored at soil temperature
  • PE Nylon tip

A photo of the SKS20 suction cup with shaft storage
The SKS20 allows for water and solute collection down to depths of 8 meters that could not normally be collected from other pore water samplers.
  • Cost effective; sampling bottles are not needed
  • Extracted soil water is stored at soil temperature
  • Al203 Ceramic tip

A photo of the MAS-1 4-20 milliamp soil moisture sensor
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

A photo of the RT-1 soil temperature sensor
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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