* One meter for multi purpose operation :

PH/ORP, CD/TDS, Dissolved Oxygen, Salt measurement.

* 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.

* Salt : 0 to 12 % salt ( % weight ).

* Optional PH, ORP, CD/TDS/Salt, Dissolved Oxygen and ATC probe.

* DC 1.5V ( UM-3, AA ) x 6 PCs or DC 9V adapter in.

* PH meter function can select PH or ORP.

* PH measurement can select ATC or manual temperature adjustment.

* PH measurement can make the auto calibration for pH 7, pH 4 and pH 10 or other value.

* Conductivity measurement can select uS/mS or TDS

* Conductivity measurement can select Temp. Coefficient of measurement solution.

* ATC for the conductivity measurement.

* Dissolved oxygen meter use the polar graphic type oxygen probe with temperature sensor, high precision measurement for Dissolved Oxygen ( DO ) and temperature measurement.

* Heavy duty dissolved oxygen probe, probe head can connect with BOD bottle.

* DO use the automatic Temp. compensation.

* DO meter build in " % SALT " & " Mountain Height "compensation value adjustment.

* Separate probe, easy for operation of different measurement environment.

* Wide applications: water conditioning, aquariums, beverage, fish hatcheries, food processing, photography, laboratory, paper industry, plating industry, quality control, school & college, water conditioning.

* Real time SD memory card Datalogger, it Built-in Clock and Calendar, real time data recorder , sampling time set from 1 sec to 8 hour 59 min. 59 sec.

* Manual datalogger is available , during execute the manual datalogger function, it can set the different position No.

* Innovation and easy operation,  computer is not need to setup extra software, after execute datalogger, just take away the SD card from the meter and plug in the SD card into the computer, it can down load the all the measured value with the time information to the Excel directly, then user can make the further data or graphic analysis by themselves.

* SD card capacity : 1 GB to 16 GB.

* LCD with green light backlight, easy reading.

* Can default auto power off or manual power off.

* Data hold, record max. and min. reading.

* Microcomputer circuit, high accuracy.

* Power by UM3/AA ( 1.5 V ) x 6 batteries or DC 9V adapter.

* RS232/USB PC COMPUTER interface.