Datawell : Directional Waverider MK III

•	Wave motion sensor based on a stabilised platform, accelerometers, and magnetic compass
•	measures wave height for wave periods of 1.6 to 30 seconds, accuracy 0.5 % of measured value
•	measures wave direction
•	measures water temperature
•	GPS for buoy monitoring and tracking through HF link
•	internal logger
•	LED flash antenna
•	0.9 m (0.7 m) diameter spherical hull of AISI 316
•	optional Cunifer hull, warranted not to corrode
•	3 years (1 year) battery life
•	HF transmitter range 50 km over sea
•	optional Argos module for ocean wide coverage and unlimited range
•	optional Orbcomm module (incl. GPS module) for two-way communication with buoy, independent of global position
•	optional Iridium module for ocean wide two-way communication, full spectra every 30 minutes
•	optional GSM module for data transmission via the GSM network
•	optional hull painting

Datawell : DWR-G

•	Wave motion sensor based on GPS
•	measures wave height for wave periods of 1.6 to 100 seconds
•	1 cm precision in all directions (free floating)
•	measures wave direction
•	measures water temperature (optional)
•	GPS for buoy monitoring and tracking through HF link
•	internal logger
•	LED flash antenna
•	0.9 m (0.7 m) diameter spherical hull of AISI 316
•	optional Cunifer hull, warranted not to corrode
•	2 years (1 year) battery life
•	HF transmitter range 50 km over sea
•	optional Argos module for ocean wide coverage and unlimited range
•	optional Orbcomm module (incl. GPS module) for two-way communication with buoy, independent of global position ( not available for 0.7 m version )
•	optional GSM module for data transmission via the GSM network
•	optional hull painting

Datawell : DWR-G4

•	Wave motion sensor based on GPS
•	measures wave height for wave periods of 1.6 to 100 seconds
•	1 cm precision in all directions (free floating)
•	measures wave direction
•	measures water temperature (optional)
•	GPS for buoy monitoring and tracking through HF link
•	internal logger
•	LED flasher
•	0.4 m diameter spherical hull of AISI 316
•	30 days battery life
•	HF transmitter range 25 Km over sea
•	optional Argos module for ocean wide coverage and unlimited range
•	optional GSM module for data transmission via the GSM network
•	optional hull painting

Datawell : Waverider SG

•	measures wave height for wave periods of 1.0 to 30 seconds, accuracy 0.5 % of measured value
•	GPS for buoy monitoring and tracking through HF link
•	internal logger
•	LED flash antenna
•	0.7 m (0.9 m) diameter spherical hull of AISI 316
•	1.3 year  (2.6 years) battery life
•	HF transmitter range 50 km over sea
•	optional Cunifer hull, warranted not to corrode
•	optional water temperature sensor
•	optional Argos module for ocean wide coverage and unlimited range
•	optional GSM module for data transmission via the GSM network
•	optional hull painting

Alternative transmissions

For wave measurement at remote locations Datawell BV can equip its Waveriders® with a satellite link:
•	Argos is a one-way system. Data of the buoy is transmitted to CLS, who provides the data for the customer. A choice between position only and position + data can be made. Argos can be combined with an HF link.
•	Orbcomm is a two-way system. Data messages are sent and received by email. Transfer of data can be programmed by the customer. Orbcomm can be combined with an HF link. GPS module is included.
•	Iridium is a two-way system. Full spectra can be uploaded through the Internet at any given interval. Iridium can be combined with an HF link. Ideal for buoy retrieval.
•	GSM allows you to receive your data via SMS messages on your computer. Message interval can be set remotely.