Resources

Learn About Water Potential

• Understanding tree water potential
• Understanding grape water potential
• Using tree water potential for irrigation
• Transitioning from the Scholander Pressure Chamber to FloraPulse Water Potential Sensors
• Microtensiometers: a new tool to monitor your apple trees for deciding when and how much to irrigate
• What it’s like to have real time plant stress

User Manuals

• Analog probe
• SDI12 probe
• SDI12 Uploader
• Probe installation
• 7mm probe installation
• Probe Reuse Manual
• 4G datalogger Manual
• Smartphone installation
• Getting started with FloraPulse dashboard
• Data analysis and troubleshooting guide (PDF)
• Interactive troubleshooting guide — match your data to known patterns, get step-by-step fixes, and chat with AI support
• Crop compatibility database — browse 55 crops with performance data, installation tips, and validation images

Videos

• Large sensor installation
• 7mm small probe installation for most crops (c-clamp)
• 7mm small probe installation (hammer)
• 7mm small probe installation into thick bark
• How to remove/reuse probes
• 3mm small probe installation video
• Walnut probe installation video
• Sensor testing in the laboratory
• Dashboards overview
• Dashboard for iOS
• Quick datalogger setup and diagnostics
• In-depth datalogger overview setup and instructions

Product Information

• ASHS presentation slides
• Lab Ferrer at FruitCREWS 2023
• Product description
• Scientist brochure
• Grower brochure
• Important facts when using FloraPulse
• Frequently asked questions
• How to pick a FloraPulse sensor style

Other Resources

• Programs to read probes with Campbell Scientific loggers
• Spreadsheet to process raw sensor data for datalogger SD card, SDI12 or analog probes
• Spreadsheet with all sensor manufacture coefficients
• California partial sales tax exemption for agriculture equipment – certificate
• Presentation 1: FloraPulse overview
• Presentation 2: Standard operational procedures
• Presentation 3: Troubleshooting for scientists
• Presentation 4: New developments
• Check your FloraPulse logger battery and cellular signal (input your logger number at the top)
• Spreadsheet to calculate baseline for almond, prune, grape and walnut

Research papers and posters

• A microtensiometer capable of measuring water potentials below -10 MPa. Vinay Pagay 2014
• Ex situ and in situ measurement of water activity with a MEMS tensiometer. Winston Black 2019
• Microtensiometers accurately measure stem water potential in woody perennials. Lee Kalcsits 2021
• Dynamic aspects of plant water potential revealed by a microtensiometer. Vinay Pagay 2021
• Evaluating a novel microtensiometer for continuous trunk water potential measurements in field-grown irrigated grapevines. Vinay Pagay 2022
• A microtensiometer sensor to continuously monitor stem water potentials in woody plants – design and field testing. Alan Lakso 2022
• Irrigation management using sensors. Ken Shackel 2022
• Plant-based sensing for irrigation management in the field. Alan Lakso 2022
• Monitoring stem water potential with an embedded microtensiometer to inform irrigation scheduling in fruit crops. Alan Lakso 2022
• Assessment of trunk microtensiometer as a novel biosensor to continuously monitor plant water status in nectarine trees. Maria R. Conesa 2023
• Long-term validation of continuous measurements of trunk water potential and trunk diameter indicate different diurnal patterns for pear under water limitations. Blanco 2023
• Trunk water potential measured with microtensiometers for managing water stress in “Gala” apple trees. Nieto 2023
• Using micro-tensiometers to manage water stress to maximize fruit size of apple orchards. Luis Gonzalez 2023
• Monitoring of grapevine stem potentials with an embedded microtensiometer. Alan Lakso 2023
• Plant water stress derived indexes from water potential and diameter fluctuations measurements. Conesa 2023
• Monitoring cotton water status with microtensiometers. Duke Pauli 2024
• Continuous monitoring of stem water potential in deciduous forests: assessing a novel microtensiometer for ecosystem hydraulics research. Ruth-Kristina Magh 2024
• Testing a novel microtensiometer sensor in a citrus orchard for feedback control irrigation scheduling. Vincenzo Alagna 2024
• Continuous plant-based and remote sensing for determination of fruit tree water status. Alessandro Carella 2024
• Relating microtensiometer-based trunk water potential with sap flow, canopy temperature, and trunk and fruit diameter variations for irrigated ‘Honeycrisp’ apple. Lee Kalcsits 2024
• A review of methods for data-driven irrigation in modern agricultural systems. Matthew Jenkins 2024
• In-situ xylem water potential measurements using microtensiometers (protocol). Ruth-Kristina Magh 2024
• Measuring the diurnal variation of root conductance in olive trees using microtensiometers and sap flow sensors. 2024
• Das Potenzial von Stammwasserpotenzial-sensoren für die Waldforschung. Stefan Segger 2024
• Preliminary observations on the use of microtensiometers to continuously measure water potential in a mature olive orchard. Giulia Marino 2024
• Multisite evaluation of microtensiometer and osmotic cell stem water potential sensors in almond orchards. Isaya Kisekka 2024
• Plant biosensors analysis for monitoring nectarine water status. Maria Conesa 2024
• A technical survey on practical applications and guidelines for IoT sensors in precision agriculture and viticulture. David Pascoal 2024
• Effects of organic mulching and regulated deficit irrigation on crop water status, soil and yield features in an orange orchard under Mediterranean climate. Vanella 2024
• Continuous stem water potential measurements of a diffuse-porous tree species offer new insights into tree water relations. Simon Haberstroh 2025
• Creation of a digital twin based on microtensiometer indices (FloraPulse), climatic variables and crop data for sustainable production in stone fruit crops. MFG Cruz 2025
• Tree drought physiology: critical research questions and strategies for mitigating climate change effects on forests. Andrew Groover 2025
• Microtensiometer-based trunk water potential as a plant water status indicator in kiwifruit under different soil water availability. Roberto Di Biase 2025
• Microtensiometer-based stem water potential measurements reveal species and soil controls in temperate forests. Ruth-Kristina Magh 2025
• Using microdendrometers and microtensiometers for mango irrigation scheduling: a review. Ping Lu 2025
• Preliminary results on the validation of automated measurements of stem water potential with microtensiometers in coffee plants. Teresa Paco 2025
• Combining plant-based sensing and mechanistic modelling to quantify hydraulic resistance and capacitance for real-time irrigation in Mediterranean yellow-fleshed kiwifruit orchards. Maria Calabritto 2025
• Microtensiometers for detecting and shaping the response of grapevine to increasing water stress levels. Damiano Zanotelli 2025
• Apple trees’ behavior to a single-season megadrought stress. Joan Girona 2025
• The reduced canopy area in esca-symptomatic grapevine plants leads to lower canopy transpiration and mitigates water stress. Ninon Dell’Acqua 2025
• Assessing microtensiometers for monitoring stem water potential in mandarin (Citrus reticulata Blanco) orchard under different irrigation regimes. Vincenzo Alagna 2025
• Urban tree drought stress: a practitioner-focused review of detection and monitoring methods. Vera Hörmann 2025
• Tracking drought-driven hydraulic impairment in Pinus sylvestris with microtensiometry and dendrometry. Antonio Cachinero-Vivar 2026
• Can micro-tensiometers move us beyond the Scholander pressure chamber? Gregory Gambetta 2026