PH/ORP, DO, CD/TDS METER Model : YK-2005WA * One meter for multi purpose operation : PH/ORP, DO, CD/TDS METER. * pH : 0 to 14.00 pH, ORP : 1999 mV. * Conductivity : 200 uS/2 mS/20 mS/200 mS. * Dissolved oxygen : 0 to 20.0 mg/L. * ATC (automatic temperature compensation). * Real time data logger (record year, month, date, hour, minute, second), 16,000 data logger. * Max., Min., Data hold. * RS-232 computer interface. * Optional data transmission software, SW-DL2005. * Optional electrode : pH, ORP, CD/TDS, DO, ATC probe. * Jumbo LCD, unit with dot matrix display. * DC 1.5V (UM-3, AA) x 4 PCs or DC 9V adapter in. * Size : 203 x 76 x 38 mm.