Conductivity Meters- Potable HI98192 Waterproof portable EC/resistivity/TDS/N aCl auto ranging meter with graphic displayModel:Professional 5Waterproof MetersEC/TDS/Resistivity/Salinity Meter with USP <645>• Waterproof· IP67 rated waterproof, rugged enclosure• Salinityreadings· Salinity can be displayed as % NaCl, seawater scale (ppt) or practical salinity scale (PSU)• Calibration· Perform up to a five point calibration for enhanced accuracyTemperaturecompensation· Automatic Temperature Compensation · Configurable temperature coefficientrange from 0�00 to 10�00%�°CFour-ring stainless steel probe· This probe can cover low EC samples to 1000 mS/cm (actual EC)• Approximately 100 hour battery life· Powered by (4) 1�5V AA batteries• Cleardisplay· Dot matrix display with multifunction virtual keys• AutoHold· Automatically holds the first stable reading on the display• Calibrationtimeout· Alerts when calibration is due at a specified interval• Connectivity· PC connectivity via opto-isolated micro-USB with HI92000 software• GLP· GLP data provides data from previous calibration to ensure Good Laboratory Practices are met• Intuitivekeypad· Most of the available options such as GLP information, help, range, calibration and backlight have a dedicated button• Suppliedcomplete· Each meter is supplied complete with sensor, calibration solution, beakers, PC software and connection cable, instruction manual, quickstart guide and batteries in a rugged, custom carrying case�