Environmental & Scientific Instruments Co.
Environmental & Scientific Instruments Co.


Contact Us

Plot – 123, Industrial Area, Phase – II, Industrial Area Phase 2, Panchkula, Haryana - 134113, India

Mobile : +91-9216626616

Phone : +91-172-5033251

Fax : +91-172-2591407

Dissolved Oxygen Meter - 831 (Handheld)

Designed in ABS Plastic to provide the rugged portability matched in fields with the accuracy demanded in the laboratory. A beautiful carrying case holds every thing needed in the field operation. These are useful test instruments to measure DO of any solution in the fields, laboratory or plant.


  • ABS Plastic Body
  • 3 ½ digit LCD display
  • Rugged Portability
  • DO measurements


Application Pharmaceutical
DO Accuracy: +/-1
Weight 200 Gms
Dimension (mm) 175 (l) X70 (w) X 33 (h)
pH Resolution 0.01
pH Range 2 - 12
pH Accuracy +/-0.1

Additional Information

Product Code Dissolved Oxygen Met



Range 0-20 ppm
Resolution 0.1 ppm
Sensor Amperometric DO Probe (Gold/Silver membrane type)
Temp. Compensation Manual (0-50oC)
Accuracy ±0.2ppm
Display 3 1/2 digit LCD
Battery 9V DC
Size Size

Note : Specifications are subject to change due to continuous improvements.