This Constant-Current-Source type CCS5 is used to power heater of up to three Sapflow Sensors of type Granier Principle.

The board is coated and prepared with DIN Rail Adapter.
It should be installed inside a weatherproof housing together with customers datalogger.

External power supply required 12-18 Vdc.
Output: 83mA to achieve stable 200mW heating power on standard Sapflow sensors SF2 or SF4 with 20mm Heating zone.
It can be used as well for other heating zone lenthgs, because due to constant current the heating power per mm will stay the same.