BAT GMS - the innovative technology for groundwater monitoring and testing 

Unique and proven BAT Technology
The patented BAT GMS – BAT Groundwater Monitoring System – represents an innovative and proven technology for groundwater monitoring and testing. For more than thirty years the BAT GMS has been successfully used in a great number of groundwater monitoring projects worldwide.

BAT MkIII Filter Tip and the unique Quick Connect system 
The key element of the BAT GMS is the BAT MkIII Filter Tip.The water filled tip is sealed with a flexible septum. A leakproof connection to the filter tip is established by using an injection needle which penetrates the flexible septum. In other words, the septum and the injection needle form the components of a leakproof quick connect.

When the needle is retracted, the septum in the BAT Filter Tip automatically reseals. The septum can be penetrated by the needle hundreds of times without loss of its self-sealing function.

Multiple functions
The quick connect system of BAT GMS allows interconnection, temporary or permanent, between the BAT Filter Tip and the various BAT Probes such as:


  • BAT Piezometer for measurement / logging of pore pressures and groundwater levels
  • BAT Permeameter for in-situ measurement of soil permeability
  • BAT Groundwater Sampler for collecting discrete samples of groundwater and soil gas

Flexible and cost effective
Due to the patented quick connect system hundreds of installed BAT Filter Tips can be served by only one
BAT Measuring / Sampling Kit.


Accurate and reliable
Thanks to the quick connect system, function control of both the various BAT Probes and the installed BAT Filter Tip can be made at any time. When needed, remedial measures can also be carried out.

These features of the BAT system make, for example, possible to conduct longterm pore pressure measurements or discrete sampling of groundwater with a maintained high level of accuracy and reliability.