DO METER, ASI-DTM

DO meter with additional conductivity probe:
The instrument should be supplied with meter- and optical technology-based dissolved oxygen
probe, 1 m cable, BOD bottle & stopper for calibration, and meter stand.
DO Measurement Range: 0.05–20.0 mg/L
Conductivity Range: 0.01 µS/cm ® 200.0 Ms/cm
The instrument should be the portable type and operate on battery as well as on power.
The meter should be capable of measuring ph, conductivity, tds, salinity, orp, ISEs, etc., with
suitable probe 
Data Memory: 500 points.
Data Export: Download via USB connection to PC or flash memory device. Automatically
transfer the entire data log or as readings are taken.