Download Brochure. The HydroBox HD TM is a portable high- resolution, shallow water echo sounder. Designed for inshore and coastal hydrographic marine surveys up to 1000 meters of water depth. Extreme ease of use, portability, and cost efficiency make this device the perfect choice for shallow water hydrography.
Guide to Helsinki weather in May The average maximum daytime temperature in Helsinki in May is a comfortable 15Â°C (59Â°F). The average night-time temperature is usually a cold 5Â°C (41Â°F).
Helsinki, Finland, is located on the Gulf of Finland, which is an arm of the Baltic Sea.The Baltic Sea is bordered by the islands of Denmark, the Scandinavian Peninsula and the northwestern European mainland. Helsinki is the capital of Finland which is in the northern Europe. Finland is one of the nordic countries along with Sweden, Norway, Denmark and Iceland. 2 people found this useful. Edit.