Easier, more advanced, and more robust, the ZL6 introduces cloud-based data delivery, Bluetooth® configuration, firmware-over-the-air updates, and integrated metadata.

The ZL6 Pro puts data collection and management on auto-pilot, so you can focus on what you love.

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.

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.

The ATMOS 14 will rapidly and reliably measure air temperature, relative humidity, barometric pressure, and vapor pressure, making benchmarking quick and hassle free.

Accuracy. Dependability. Affordability. You get all three with the ATMOS 22 ultrasonic wind anemometer.

The world's best all-in-one weather station for atmospheric measurements that doesn't limit you with other sensors.

The new, ultra-robust TEROS 10 soil moisture sensor delivers scientific accuracy and reliability at a price that makes large sensor networks economically practical.

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.

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.

TEROS Borehole Installation Tool was engineered to provide easier, faster, and better sensor installation at greater depths.

The ECH2O EC-5 soil moisture sensor delivers research-grade accuracy at a price that makes large sensor networks economically practical.

The 10HS soil moisture sensor is better at characterizing spatial variability as it averages soil moisture over a greater volume.

The MAS-1 is a current-based soil moisture sensor with ultra-long cable lengths.

The ultra-robust TEROS 06 is a research-grade temperature profile probe that delivers accurate soil temperature data for better models and predictions.

Easy-to-use sensor for measuring the temperature of soil or other materials.

The TEROS 21 matric potential sensor is incredibly easy to use and surprisingly affordable.

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.

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.

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.

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.

Measure water depth, temperature, and electrical conductivity.  Low-complexity, low-maintenance, and low-cost design saves you time, hassle, and money.

The Drain Gauge G3 is an easy-to-use lysimeter specifically designed to measure deep drainage over larger areas at an affordable cost.

The AutoPump automatically drains the Drain Gauge G3 reservoir into bottles for later collection or away from the measurement area.

A revolutionary new method for soil particle analysis. Automated, simple, and fast—with much less human error than traditional methods.

Automated calculation of high-resolution soil moisture release curves and unsaturated hydraulic conductivity—in just days, instead of months.

The WP4C measures water potential by determining the relative humidity of the air above a sample in a sealed chamber (conforms to ASTM D6836).

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.

For understanding complex soil issues like clay behavior, specific surface area, and more the VAPOR SORPTION ANALYZER is your simplest, most accurate option.

VARIOS automatically generates complete, high-resolution dry down curves with less effort and less cost, so you can focus on what you love.

More accurate than any thermal properties analyzer in its class, with an incredible one-minute read time.

VARIOS automatically generates complete, high-resolution dry down curves with less effort and less cost, so you can focus on what you love.

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.

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.

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.

Apogee NDVI and PRI sensors combine an ultra-rugged form with sophisticated cloud data delivery for an unbeatable price-to-performance ratio.

The SQ-521 PAR Sensor provides accurate and cost-effective measurement of photosynthetically active radiation (PAR) from all light sources used to grow plants. 

The IRT infrared thermometer monitors surface temperature by measuring the thermal energy radiated from any surface.

The PYR solar radiation sensor is designed for continuous outdoor use and is completely waterproof and submersible.

If you need research-grade net radiation accuracy at an affordable price, then you’ll love the easy-to-use Apogee Net Radiometer.

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.

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. 

High-resolution rain gauge for measuring precipitation and for use in scientific research.

Low-resolution rain gauge for measuring irrigation events.

An easy-to-use research-grade air temperature sensor for measuring the temperature of air.

The ES-2 is designed to measure the electrical conductivity of water in a pipe or tank.

The PS-1 Irrigation Pressure Switch adds irrigation water on/off data into the soil moisture data set.

The FM-25 combines the accuracy of positive displacement meters with the reliability and economy of nutating disc technology.

The D1 Dendrometer is a simple tool to manually measure changes in the circumference of tree stems over time.