Model SF-4P & SF-5P -Sap Flow sensors

The SF-4P and SF-5P sensors are designed for monitoring relative variations of sap flow rate in a leaf petiole or small shoot. The sensor’s probe is made as a hollow collapsible heat-insulating cylinder. A heater and a pair of bead thermistors are located inside the cylinder. A signal conditioner provides powering of the heater and conditioning of the output signal. The probe is connected by a standard 1-meter cable to the waterproof box with the signal conditioner inside. Standard output cable length between signal conditioner and monitor is 4 meters.