DISSOLVED OXYGEN METER/DATALOGGER DISSOLVED OXYGEN RANGE 0 TO 20MG/L OXYGEN CONCENTRATION 0 TO 100 PERCENT TEMP RANGE (F) 32 TO 122 TEMP RANGE (C) 0 TO 50 DISPLAY DUAL LCD AUTO POWER OFF AUTO POWER OFF WITH DISABLE MEMORY 20M DATA RECORDS USING 2G SD CARD TEMPERATURE COMPENSATION RANGE 0 TO 50 DEGC PROBE COMPENSATION CALIBRATION CALIBRATE IN FRESH AIR INTERFACE SD CARD AND RS-232 INTERFACE CABLE LENGTH 39 INCHES (1M) POWER SOURCE SIX AA BATTERIES
