Handheld Type Dissolved Oxygen Meter 8401/8402 ;
RS232/IrDA Interface Dissolved Oxygen Meter 8403
■ Accurate D.O. Measurement
■ Dsalinity And Barometric Pressure Compensation (8402/8403)
■ Stores And Recalls 99 Data With Temperature Readings (8403)
■ Real Time Clock For Each Memory Data (8403)
■ RS232 Interface (8401/8402) Or RS232 +Irda Interface (8403)