Meet the CT Station

Low Maintenance  | Measure Water Conductivity | Measure Water Salinity

Obscape’s CT Station is the ideal all-in-one solution for real-time conductivity, temperature and salinity measurements. It combines the robust Obscape Power & Telemetry Module with a low-maintenance toroidal CT probe. Together they form a CT Station that is unchallenged in its ease of use. Whether you are monitoring aquatic habitats, estuarine hydrodynamics or salt intrusion, the Obscape CT Station will suit your needs.

Where oceanic and inland waters meet, the interaction of fresh and saline water create an intriguingly complex environment. A salt wedge intruding into an estuary or harbour basin can start dominating the hydrodynamics and may have a significant impact on sediment transport. Diverse and unique habitats can form through the interplay of salinity, tides and waves. Observations of conductivity, water temperature and salinity form the starting point for getting insight into these natural dynamics.

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Product Overview

The CT Station is completely wireless. Power is supplied through built-in solar panels, while data are transmitted in real-time using a 4G GSM connection. Therefore, the CT Station is easy to install at any desired location within GSM coverage. There is no need to worry about access to mains power or third-party internet access points. Its wireless nature makes the CT Station very suitable for monitoring of remote areas.

Key Features

  • Accurate conductivity, temperature and salinity
  • Toroidal sensor minimises bio-fouling
  • Completely wireless
  • Real-time data
  • Solar powered
  • Real-time data up to 4G (upgradable to Satellite)
  • Multiple mounting options
  • Versatile data portal included

Convenient Monitoring

While traditional CT probes suffer from rapid bio-fouling, compromising their accuracy and maintenance interval, the toroidal CT probe of Obscape’s CT Station was specifically designed to minimise marine growth. Paired with our powerful and robust workhorse, the Power & Telemetry Module, conductivity data make their way to your desktop in real-time.


Data Specifications

Parameters Conductivity, water temperature, salinity, atmospheric pressure, battery voltage, GSM signal strength, internal temperature, sensor inclination, internal humidity
Sensor Range 0 – 2,000,000 uS/cm
Sampling Interval 5 – 60 minutes (user selectable)
Storage On-board micro SD card

Web Portal Specifications

Real-time Graphs Conductivity, water temperature, salinity, atmospheric pressure and additional (status) parameters
Downloads Raw data (CSV format), Graphs (PNG), Reports (PDF)
Forwarders JSON API or HTTP post
Status Notification Emails Online/offline, battery level, parameter threshold exceedance

Physical Characteristics

Components Power and Telemetry Module (PTM) and toroidal CT probe
CT Probe Sensorex TCS3020
PTM Width 87 mm
PTM Depth 87 mm
PTM Height 200 mm
PTM Weight 1 kg
CT Probe Diameter 52 mm
CT Probe Height 119 mm
CT Probe Weight 1 kg
CT Probe Mounting 3/4’’ MNPT

Electrical Characteristics

Solar Panel Capacity 3W
Battery 1 single 18650 lithium battery
Nominal Voltage 3.7 V

Telemetry Specifications

Communication Mode GSM (4G with 2G fallback- region determine prior to order), upgradable Satellite (Iridium).
Real-time Data Interval 5 minutes – 24 hours (user selectable)
Real-time Data Conductivity, water temperature, salinity and additional (status) parameters
GSM Data Load Approx. 8 kB per message


CT Station €2,600 including web-portal license and PTM mounting bracket
GSM Communication Micro SIM card and sufficient data credit to be arranged by user. CT Station can also be run in offline mode (data saved to SD card).

PTM Data Portal

Purchase of any PTM & Sensor includes the Data Portal subscription and mounting brackets Free of Charge

PTM Data Portal

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