DO Meter & pH Meter
Lutron Make,
Model : YK-2001DO
Features:

Price:
Display Type : Other, Large digital LCD
Accuracy : 0.4 mg/L or 1% FS
Resolution : 0.1 mg/L
Measurement Range : 0.0 20.0 mg/L
Temperature Range : 0C 50C
Power Supply : 4 x 1.5V AA batteries
Display Type : Other, LCD digital display
Accuracy : 1.5% F.S.
Resolution : 0.1 mg/L
Measurement Range : 020.0 mg/L (O2)
Temperature Range : 0C to 50C
Power Supply : 9V DC battery
Display Type : Other, Digital LED/LCD Display
Accuracy : 0.1 mg/L
Resolution : 0.01 mg/L
Measurement Range : 020 mg/L (O2)
Temperature Range : 0C to 50C
Power Supply : 230V AC, 50Hz