Portable Dissolved Oxygen Meter

Vasthi Instruments are global leaders in manufacturing of Portable Dissolved Oxygen Meter and have been supplying instruments to customers worldwide, Our multidisciplinary team of scientists, physicians, engineers, and regulatory consultants with decades of global experience brings you the quintessential mechanism that provides complete safety accuracy and durability.

Vasthi Instruments was formed with visionary thinking and innovative ideas resulting in innovative products and solutions. We enhance our product quality by the continuous process of research and development. We have WIDE range of models to suite various site conditions and processes.
Portable Dissolved Oxygen Meter


Technical Specifications


Membrane DO meter


Measuring range 0.0001-20mg/L
 Min display unit 0.0001mg/L
Basic error ±0.0001mg/L
Temp range 0-60°C
Power supply 5A Battery*4
Working condition

Working temp:0-60°C;

Relative humidity:<90%RH



Thermal power plant, chemical

Metallugy ,Boiler, Pharmacy,

Beverage, Tap water

Can show both mg/L.ppm and %

Temp and Salinity compensation

Membrane,  Stable.


Optical DO meter


Measuring range 0-20ppmDO 0-200%
Accuracy ±0.1mg/L 0-20mg/L
Response time <60

Non-Maintenance Stable, No drift,

Auto Temp/pressure compensation

Salinity compensation for sea water.