Meet the Wave Module PTM

Solar Powered | Bulk Wave Monitoring | Rugged IP67 Waterproof Housing

Highly accurate real-time wave measurement system that reports
the wave spectrum including wave height, wave period  and more. By pairing Obscape’s versatile Power & Telemetry Module with our accurate wave sensor, the Obscape Wave Module PTM mounted to most standard hydrography and navigation buoys empowers the customer to accurately measure waves within a low cost and rugged IP68 solution.

The Wave Module PTM uses a combination of motion sensors and an electronic compass to measure the wave field with high accuracy. This yields the non-directional wave spectrum and all parameters that can be derived from it, such as the 1-dimensional energy-density spectrum and a range of bulk wave parameters.

Main Applications

  • Port and harbor entrances
  • Shipping lanes and edge channels
  • Inland Waterways
  • Aquaculture areas
  • Offshore power farms
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Habour markers, offshore floating hulls and navigational buoys are designed to withstand high shipping traffic areas, extreme swell and current conditions. By mounting the Obscape Wave Module to these types of stable floating structures, the bespoke Obscape engineered wave measurement system offers a rugged IP68, accurate and reliable solution to measure the full wave spectrum.

Product Overview

The Wave Module is suitable for application in ports and harbour entrances, shipping lanes and edge channels, inland Waterways, aquaculture areas and offshore power farms to name a few.

Whether you are interested in Marine & Coastal engineering, Oceanographic research, Environmental monitoring or Work compliance monitoring the Obscape Wave Module suits your needs.

Key Features

  • Economical option
  • Solar powered
  • Mount to existing buoy structure
  • Completely wireless
  • Real-time data
  • Non-directional wave spectrum
  • 4G GSM telemetry (optional Satellite)
  • Multiple mounting options
  • Easy and Secure data portal included Free of Charge

Easy and Quick Setup

Deployment of the Wave Module can be achieved by mounting to a floating hull structure prior to deployment or onsite at sea. Standard brackets are supplied, or a simple cage fabricated by the customer to enable mounting to most habour markers, offshore floating hulls and navigational buoys


Data Specifications

Wave Spectrum Full Wave Spectrum
Bulk Wave Parameters Hm0, Hmax, Tp, Tm01, Tm02, Tm-10, Tmax, Dirp, Dirm, σp, σm
Diagnostic Parameters Latitude, Longitude, Battery voltage, Solar panel voltage, Signal strength
Sample Frequency 6.25 Hz
Filtered Frequency Range 0.05 Hz – 1.00 Hz (20 sec – 1 sec)
Burst Duration 30 minutes
Storage Data Portal & on-board micro SD card

Physical Characteristics

Housing Width 87 mm
Housing Depth 87 mm
Housing Height 280 mm
Housing Weight 2 kg

Electrical Characteristics

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

Web Portal Specifications

Online Graphs Bulk wave parameters, interior temperature, humidity and atmospheric pressure, diagnostic parameters
Downloads Bulk wave parameters, diagnostic parameters, 1D wave spectra (text files, png or pdf report)
Forwarders JSON API or HTTP post
Status Notification Emails Online/offline, GPS watch circle, battery level, wave height threshold

Telemetry Specifications

Communication Mode Cellular (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 Full wave spectrum, interior temperature, humidity and atmospheric pressure, diagnostic battery and solar voltage, GSM signal strength.
GSM Data Load Approx. 8 kB per message

Factors Adversely Affecting Operation

Breaking Waves Reduced accuracy
Constrained Mooring Line Reduced accuracy


Wave Module €2,500 including web-portal license
GSM Communication Micro SIM card and sufficient data credit to be arranged by user
Upgradable Satellite Module Iridium module €500
Satellite Communication €0.05 per credit, line rental €14 per month (invoiced to user every 3 months)

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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