MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Multi-parameter system having 4 sensor ports for quick basic measurements of surface water; for measuring optical dissolved oxygen-rdo; dissolved oxygen-polargraphic; conductivity, sc, tds, resistivity; temperature; ph; orp; ph/orp; salinity; level, depth , pressure; barometric pressure; has replaceable sensors; high accuracy calibration