Geophysical
Stema Systems has developed a market leading sub-bottom profiling methodology using a combination of uniquely designed equipment with in-house developed software, resulting in a system that can provide a host of sub-bottom analysis results catering to the clients specific needs.
Hydrography
In corporation with the leading suppliers of water column analysis Stema has combined the knowhow of its experienced team with best products in the market so as to be able to provide the most comprehensive range of hydrographical surveying results.
Positioning
Stema systems positioning system using the latest GNSS technology aims to give our customers the ultimate in flexibility and accuracy. Taking the best components from the industry and combining them into an unrivalled product that will complement all your surveying needs.
Environmental
Stema Systems having combined the equipment for water column and sub-bottom analysis is in a position to offer a complete range of systems that will enable its clients to conduct comprehensive surveys of the entire maritime environment, from harbour slip monitoring to placement of wind turbine foundations.
RheoTune
RheoTune

Stema RheoTune

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DensiTune Portable
DensiTune Portable

Stema DensiTune Portable

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Silas Processing
Silas Processing

Silas HRS processing

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SONIC 2020
SONIC 2020

R2Sonic 2020 Wideband Multibeam Echosounder
2.0 x 2.0 degree angular resolution, 300 m depth rating, 200m range multibeam, 130deg swath width

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SONIC 2022
SONIC 2022

R2Sonic 2022 Wideband Multibeam Echosounder
1.0 x 1.0 degree angular resolution, 100 m depth rating, 500m range multibeam, 160 deg swath width

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SONIC 2024
SONIC 2024

R2Sonic 2024 Wideband Multibeam Echosounder
0.5 x 1.0 degree angular resolution, 100 m depth rating, 500m range multibeam, 160 deg swath width

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GNSS982-PoE
GNSS982-PoE

Stema GNSS982-PoE

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P-160 tilt sensor
P-160 tilt sensor

P-160 Subsea PoE tilt sensor
Range tilt -80/+80. Stainless steel housing with steel baseplate. 3x M18x1,5 openings for PoE in, out and optional external sensor

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PR-6060 roll/pitch sensor
PR-6060 roll/pitch sensor

PR-6060 Subsea PoE roll pitch sensor
Range pitch/roll -30/+30. Stainless steel housing with steel baseplate. 3x M18x1,5 openings for PoE in, out and optional external sensor

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SONIC 2020
SONIC 2020

R2Sonic 2020 Wideband Multibeam Echosounder
2.0 x 2.0 degree angular resolution, 300 m depth rating, 200m range multibeam, 130deg swath width

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SONIC 2022
SONIC 2022

R2Sonic 2022 Wideband Multibeam Echosounder
1.0 x 1.0 degree angular resolution, 100 m depth rating, 500m range multibeam, 160 deg swath width

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SONIC 2024
SONIC 2024

R2Sonic 2024 Wideband Multibeam Echosounder
0.5 x 1.0 degree angular resolution, 100 m depth rating, 500m range multibeam, 160 deg swath width

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Silas useful in pollution isolation project
Silas useful in pollution isolation project

The Kralingse Plas is situated near to Rotterdam, The Netherlands, town centre. The lake has an important recreational function. Nevertheless […]

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The Survey-machine–quick start, fast survey
The Survey-machine–quick start, fast survey

“The Survey-machine – quick start, fast survey”: introducing the Fast Surveyboat 7.50 with fully calibrated survey equipment. DutchWorkboats and Stema […]

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GNSS960 RTK precision 25 miles Offshore
GNSS960 RTK precision 25 miles Offshore

Dutch contractor Van Oord Dredging and Marine Contractors bv (Van Oord) has been awarded the contract for the engineering, procurement […]

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