The Onset HOBO U20-001-04-Ti Titanium Water Level Data Logger is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas (up to 30 feet). This data logger features high accuracy at a great price and HOBO ease-of-use, with no cumbersome vent tubes or desiccants to maintain.
Note: U20-001-04-Ti data loggers require the HOBOware software (free to download) to operate. Please also note that a USB interface cable comes with the purchase of a HOBOware Pro CD (BHW-PRO-CD), only