Water Quality Monitoring Buoy’s

Vasthi Instruments are global leaders in manufacturing of Water Quality Monitoring Buoy’s 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.
Water Qualitry Monitoring Buoy’s



VW-4000 Water Multi-parameter Buoy Monitoring Station is able to realize intelligent monitoring of multiple parameters, including NH3N, COD, regular five parameters (pH, DO, conductivity, turbidity and water temperature). According to customized protocol, the data can be uploaded to system platform. Buoy and floating platform is composed by floating body, monitoring instrument, data transmitting unit, power supply unit (battery and solar power providing system), mooring device, protection unit (beacon light, alarm).


The product can be widely applied in fields of aquaculture, surface water, urban river water and etc.


Features :

  • Strong carrying capacity, able to carry 6 monitoring probes.
  • High an-interference ability, probes are installed respectively to avoid mutual interference during monitoring.
  • Strong power supply capacity, customization and model selection; endurance is able to reach 10 days or above if there is no sun.
  • Equipped with position indication and built-in warning light, able to locate clearly at night and avoid crash.
  • Easy to deploy, good environment adaptability.
  • Convenient maintenance, solar panel adopts lock catch type; remove only one and all probes can be dismantled.


Conductivity:10-2,000 us/cm
Blue-gree alage:100-300,000cells/mL
NH3N:0.1-1000 mg/L
ORP:-2000mV-+2000 mV
Resoluon : pH: 0-0.1pHResoluonDO: 0.01mg/
Conducvity: 0.01 us/cm

Turbidity: 0.01NUT
Blue – gree algae : 0.01 ug/L NH3N: 0.01mV
ORP : 0.1 mV
Minimum period : 60s
Dimension : 450 x 368 x 605 (mm)
Weight : 30KG
Human-machine interacon : 7-inch color Android screen
Supply voltage : 220 ± 10% VAC, 50/60Hz
Ambient temperature : 5-45°C
Uploading : GPRS wireless transmission