"CAN MEASURE UP TO 12 PARAMETERS; MEASURES RIVERS, LAKES AND SEAS; EVALUATES WATER QULAITY - DISSOLVED OXYGEN SATURATION PERCENTAGE, CONDUCTIVITY, AND SEAWATER SPECIFIC GRAVITY; 5 INTERFACE LANGUAGES; GRAPHICAL DISPLAY WITH BACKLIGHT; GLP FEATURES; UP TO 60,000 SAMPLES STORED IN 100 DIFFERENT LOTS; 4 SIZE C NI-MH RECHARGEABLE BATTERIES; PASSWORD PROTECTION; 4M PROBE AND GPS ENABLED CABLE"