pH

 Range
 Resolution
 Relative Accuracy

 -2.000~19.999
 0.001/0.01/0.1
 ±0.002

 Concentration

 Range
 Resolution
 Relative Accuracy

 0.0001~19999mg/L
 ± one least significant
 ±0.25% of Reading

 Millivolts

 Range
 Resolution
 Relative Accuracy

 ±1999.9
 0.1
 ±0.1mV

 DO

 Range
 Resolution
 Relative Accuracy

 0.00~19.99mg/L
 0.01/0.1
 ±0.5​mg/L​

 O₂

 Range
 Resolution
 Relative Accuracy

 0.0~60.0％
 0.1%
 ±1 digit

 Air Saturation

 Range
 Resolution
 Relative Accuracy

 0.0~199.9％
 0.1%
 ±1 digit

 Conductivity

 Range
 Resolution
 Relative Accuracy

 0 to 199,999μS/cm
 0.01/0.1
 ±0.5%

 TDS

 Range
 Resolution
 Relative Accuracy

 0 to 1999mg/L
 1 mg/L
 ±2％

 Salinity

 Range
 Resolution
 Relative Accuracy

 0.0 to 80.0ppt
 0.1
 ±0.1

 Temperature

 Range

 Resolution
 Relative Accuracy

 pH/Ion/EC => 0~110℃
DO => 0~60℃
0.1℃
±0.4℃

 Temperature Compensation

 Auto

 Calibration

 pH => Auto/Manual(3Point)
Ion. DO, EC => Auto

 Datalog

 100 Points

 Print Capability

 Yes

 Display

 Graphic LCD

 Inputs

 8 Pin DIN Waterproof

 Outputs

 RS232C (Computer/Printer)

 Power

 Rechargeable Battery
DC Power Adaptor

 Certification

 CE, GD mark

 Dimension

 220(L) x 80(W) x 40(H), Weight 0.45kg

 Waterproof

 IP66