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UnderWater Meter System

UnderWater Meter

Versatile amplifier and data logger system for field and underwater applications

The Unisense UnderWater Meter is a high quality research tool that allows you to apply microsensor technology in the field. The robust UnderWater Meter can be used in humid rain forests, wetlands or operated by scuba divers underwater on coral reefs, in sea grass beds or muddy estuaries.

  • Waterproof to 30 m
  • Easy to operate using magnetic keys
  • Modular system with four channels for use with all Unisense sensors
  • Read directly from large and brigth LED display and log data
  • Digital outputs for data extraction
  • Analog output for external data acquisition

In situ Amplifiers

The delicate microsensor signal is amplified by the Unisense In Situ Amplifier (ISA); these function as miniaturized pA or mV meters facilitating polarization of the microsensor. The ISAs ensure high quality signal with extremely low background noise, and are specific for each type of microsensor. All four channels of the UnderWater Meter can therefore be connected to any ISA and the amplifiers can easily be interchanged between channels. This gives you full flexibility and allows you to design an UnderWater Meter system that meets your study requirements

Logging Unit

Microsensor data are automatically saved in the logging unit. USB output gives you easy upload of data to a PC after deployment alternatively data can be monitored online and in real time on a PC using the optional analog output cable together with an A/D converter.

Complete UnderWater Meter System

When used for microscale measurements in the field, the microsensors should be mounted in a micromanipulator (MM33) on a stable stand (IS19). For measurements in incubation bottles or bulk water, the sensors can be held by hand or mounted in a frame structure. The unisense UnderWater Meter System with accessories is an excellent choice for field studies giving you flexibility and a world of possibilities.

Complete UnderWater Meter System.Dummy plugs inserted in the UnderWater Meter channels and outputs, USB tranfering cable, In Situ ...
Four channels to use with any In Situ Amplifier and Unisense Microsensor
The In Situ Amplifers ensure a high quality sensor signals with extremely low background noise - even over long distances.
In situ measurements with oxygen, H2S and pH microsensors.
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Microsensor connected to In Situ Amplifier via In Situ Connector. 
The In Situ Amplifers are specific for each type of Unisense microsensors. 
In Situ Amplifer for either pH microelectrode or Redox microelectrode. 
In Situ Connector for connection of Unisense microsensor to In Situ Amplifiers. 
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Ordering information

System components
Product
Datalogger
UnderWater Meter (4-channels)
Sensor
All Unisense Sensors and Electrodes
Amplifier
In Situ Amplifiers
Sensor connectors
In Situ Connectors
Micromanipulator
MM33 or MM33-2 (Single or double head)
Stand
IS19 in situ micromanipulator stand
Calibration chamber
CAL300
Optional battery
Field Battery Package

UnderWater Meter specfications

Technical information

View specifications

Related products

Sensors and Electrodes
Diving Diving in Greenland with the UnderWater Meter System

Diving in Greenland with the UnderWater Meter System

The Ikka Fjord in Greenland houses unique microbial communities. A Danish research team used the UnderWater Meter System to study this spectacular habitat.
Photographer: Jesper Kikkenborg

Read more

Pedersen,O. et al (2011), In situ O2 dynamics in submerged Isoetes australis: varied leaf gas permeability influences underwater photosynthesis and internal O2, Journal of experimental botany, 4691 - 4700, vol. 62

Vopel,K. et al (2011), Cues, Not an Endogenous Rhythm, Control the Dusk Peak in Water-Column Entry by Benthic Copepods, Estuaries and Coasts, 1 - 11, vol.

See all publications
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