SF-G Ecomatik Sap Flow Sensor (2 needles)

The SF-G (SF-20) SAP Flow Sensor is the typical Granier sensor and consists of two needles.

Advantages:
■ Suitable for tree diameter >2 cm (see available models)
■ Reusable sensor

Disadvantages:
■ Temperature difference between the needles are superimposed by the vertical variation of Stem temperature (up to + / -2.5 ° C). This leads to unpredictable errors of over 100%.

■ Sap flow at night can not be measured. Due to the temperature overlays the night values are incorrectly set to zero.

Compatible wih Data Loggers:
UX120-006M for up to 4 channels.
H22-001 .

Options / Ordering Information:
■ Cable extension for SF-G (please specify in meters, but max. 20 m)
■ CCS Constant Current Power Supply (one CCS is enough for up to 3 SF-G sensors). Requires constant current source (CCS) for 3 sap flow sensors (SF-L or SF-G or mixed).
■ Installation tools
■ Data Logger

Options / Ordering Information:
■ Cable extension (please specify in meters, but max. 20 m)
■ CCS Constant Current Power Supply (one CCS is enough for up to 3 SF-G sensors)
■ Installation tools
■ Data Logger

Accessories

Examples:
■ SF-20: SF-G 33 // 20, mounting depth 20-33 mm
■ SF-21: SF-G 43 // 20, mounting depth 20-43 mm
■ SF-22: SF-G 63 // 20, mounting depth 20-63 mm

And available in cable lengths of: 5m, 10m, 15m and 20 meters.