PlantSensors.com products

GP-kit Installation kit including: 1x Tube-pusher, a tool to position the brass tubes inside stem, 1x tube of heat conductive grease, 2x drill bits (2.0 mm diameter, 50 mm long), 8x Silicon cable connectors, 1 screewdriver.

The whole system is schematised in the picture above (click on the image and then maximize the window view to get a better view). It includes sensor probes, heat-averaging tubes, 4-cores data cable, power supply unit, datalogger and external battery or solar panel. The Granier sap flow sensor includes two probes inserted in the stem with one probe 10-15cm above the other.The upper probe is heated by applying a constant current across a coiled heating element, giving a constant power. The lower probe is not heated and measures ambient tissue temperature.