Features: - Microprocessor based design with large LCD displays Conductivity or TDS or Salinity and Temperature simultaneously.. - Rugged design with splash proof housing for handheld or bench top use, neckstrap for ¡°hands-free¡± operation. - Automatic Temperature Compensation(ATC) and degree ¡æ/¨H switchable. - Simple to calibrate by one button, 3 ranges of standardizing solution are necessary for the automatic calibration recognition procedure. - Memory function stores and recalls up to 25 points. MAX/MIN and data Hold. - Low battery and consumption indicator. Auto shut off after 10 minutes of non use, but except status at MAX/MIN mode.