Dissolved Oxygen Meter
Visen is counted among the best DO Meter manufacturer, supplier and exporter from India. Visen’s Dissolved Oxygen Sensors are highly reliable and provide fast results in various electro chemical applications in the laboratory. Besides, Visen is also counted among the leading manufacturer and supplier of other electrochemistry instruments like pH Meters, Conductivity Meters, TDS Meters, Salinity Meter, Turbidity Meters, Nephelometers, Colony Counters etc. from India.
DO Meters are available in bench top Microprocessor Based DO Meters, Digital DO Meters and Portable DO Meters models. These are extremely useful in fisheries, water quality control in boiler feed water, water works department, breweries, water purification plants, chemical & pharmaceutical industries etc.
Visen 81 : up Dissolved Oxygen Meter with Gold/Silver probe with stirrer mains operated

Range : 0 to 20.0 ppm
Resolution : 0.1 ppm
Accuracy : ± 2% ± 1 Digit
Temp compensation : Automatic With pt 100 probe & Manual With Keys
Pressure Adjustment : 0 to 760 mm of Hg Automatic
Salinity Correction : 0 to 20gm/l (Manual)
Calibration : Automatic
Temperature
Range : -20º to 100º C
Input Type : PT-100
Resolution : 0.1º C
Accuracy : ± 0.2% ± 1 Count
Features :
Display : 16 Character * 2 Lines Alphanumeric LCD
Display Format : Temperature And DO Simultaneously
Setting : By Soft Touch Keys
Storage : 1000 Samples With Date & Time
Interface : RS-232, Centronics & Computer
Real Time Display : 24 Hour Mode With Date
Print format :
a) All data
b) Date Wise
Power Supply : 220V ± 10% Ac 50Hz
Accessories :
1) Gold/Silver D.O Probe
2) Temperature Prob
3) Dust Cover
4) Instruction Manual .
Visen 981 : Digital Dissolved Oxygen cum temperature indicator 3½ digit LED display along with Gold/Silver probe with stirrer mains operated

Range : 0 to 20.0 ppm
Resolution : 0.1 ppm
Accuracy : 0.1 ppm ± 1 count
Temp compensation : 0º to 50º C Manual
Accuracy of compensation D.O : ± 3%
Temperature Range : 0º to 50º C
Resolution : 0.1º C
Accuracy : 0.20% ± 1 Count
Temperature Sensor : RTD Probe
Display : 3½ digit LED Display
Power : 220V ± 10% Ac 50Hz
Accessories :
1) Gold/Silver D.O Probe
2) Temperature Prob
3) Dust Cover
4) Instruction Manual .
Visen 982 : Digital Dissolved Oxygen Meter 3½ digit LED display along with Gold/Silver probe mains operated.

Range : 0 to 20.0 ppm
Resolution : 0.1 ppm
Accuracy : 0.1 ppm ± 1 count
Temp compensation : 0º to 50º C Manual
Accuracy of compensation D.O : ± 3%
Display : 3½ digit LED Display
Power : 220V ± 10% Ac 50Hz
Accessories :
1) Gold/Silver D.O Probe
2) Dust Cover
3) Instruction Manual .
Visen 983 : Portable Dissolved Oxygen 3½ digit LED display along with Gold/Silver probe Battery operated.(Portable)

Range : D.O 0 to 20 ppm
: Temp 0 to 50º C
Resolution : D.O 0.1 ppm
: Temp 0.1º C
Accuracy : D.O 0.1 ppm ± 1 count
Temp Compensation : 0 to 50º C Manual
Accuracy of compensation D.O : ± 3%
D.O Sensor : Amperometric Gold/Silver Membrane type
Display : 3½ digit seven segment LCD display
Power : 1×9 V Battery
Accessories :
1) Gold/Silver D.O Probe
2) Dust Cover
3) Instruction Manual