FieldScale - Gravimetric phenotyping and precision irrigation for plant transpiration measurements in the greenhouse or the field

DroughtSpotter assess plant transpiration rates

Our DroughtSpotter scales record the loss of weight of every pot with high precision and computes transpiration dynamics and water use efficiency for every single plant. Irrigation activities can be automated with high accuracy and reliability – even during the weekends!

  • Assess transpiration rates of plants fully automatically and in high-throughput
  • Assess water use efficiency fully automatically
  • Design and automate all irrigation activities (optional) in high Precision and reliability

DroughtSpotter is designed to accommodate bigger and unlimited number of pots up to 300 kg. The scales can be used in climate chambers, labs, greenhouses and even under field conditions.

FieldScale for drought research and precision irrigation

DroughtSpotter scales used for assessing water use efficiency (left) and drought research (right)

Spot genotypes with improved tolerances towards drought

Providing genotypes with improved tolerances towards drought has become a major focus in science and breeding programs around the world. Assessing water status has become a basic research method, which is increasingly performed by gravimetric measurements. The power of gravimetric measurements lies in its simplicity and the ability to gain integrated and resilient data over the day. We developed DroughtSpotter as a robust and affordable solution for assessing the transpiration rates of hundreds of plants.

Watch the the webinar of Dr. Vincent Vadez on how he uses the scales combined with PlantEye data to breed drought resisting / climate smart crops.



HortControl allows you to manage data and setup experiments with irrigation schedules. Design, control and track your experiments anywhere in the world. All data is stored locally on the system and processed on a server that comes with the gravimetric systems.

HortControl - data software for experiments with plant, biology, crop experiments

HortControl visualizes and analyzes your data:

  • Set up and monitor your trials
  • Data management, visualization and data export functions
  • Automated reporting functions

HortControl is the central software to setup, visualize and analyze your PlantEye measurements. Read more about HortControl and our automation process.


Use case

In one of his recent papers in the Journal of Experimental Botany Vincent Vadez et all. have shown various of examples of how DroughtSpotter can accelerate your drought screening routines. More information about their research can be found at their website .

Phenotyping for water saving traits

Using the high measuring frequency of DroughtSpotter enables you to measure absolute differences in transpiration and its dynamics over the course of the day. In this study Vadez et al. 2015 assessed transpiration rates of two different Pearl Millet genotypes with Phenospex FieldSales. (VPD at noon noted in the graph). One genotype (PRLT) shows significantly less transpiration at high VPD. This “water saving trait” is of a benefit in a drought scenario and leads to higher yield. Please note that leaf area in this experiment was assessed with Phenospex PlantEye laser scanner.

Combine sensors data:

It is possible to combine DroughtSpotter data with PlantEye measurements and with environmental data from our weather station.

PlantEye - Spectral 3D plant sensor

PlantEye automates phenotyping in 3 steps:

  1. PlantEye Scans plants and creates 3D files
  2. 20+ plant parameters are calculated
  3. Plant data is Visualized and Analyzed

PlantEye delivers 20+ parameters ready to be analyzed! Read more about the parameters and our automation process.


weather station for greenhouse or field phenotyping
Sensor: Weather Station


Weather Station: Environmental data for your data-sets

  1. Temperature
  2. Relative humidity
  3. Wind speeds
  4. PAR (Photo-synthetically active radiation)
  5. CO2

Add environmental data to your data-sets. More sensors can be added on request.


Technical Specifications

Dimensions Depending on max. load
Maximum load per scale 300 kg
Accuracy 1 – 400 g
Amount of linked scales Unlimited
Protection class IP67


DroughtSpotter Dataset

Download the salt stress dataset. It contains 292040 measurements (in 14 days), environmental data, Graphs and pictures of the setup. Enter your email to receive the download link.

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