A USB base station with optical readout used to dump data from all Onset data loggers that use optical communication

This model stores approximately 52K of 10-bit temperature readings

12-meter range

this logger holds approximately 52K measurements of 10-bit readings

HOBO MX20L Vattennivå Data Logger Measurement range:0-9 meters A USB base station withThe MX20L is an affordable data logger designed for continuous measurement of water depth and temperature with high accuracy, making it ideal for groundwater monitoring, research and various other applications. Suitable for use in freshwater, brackish water, and saltwater environments. Available in three versions. The popular and affordable water level logger U20L gets a sequel: MX20L now supporting bluetooth together with a number of improvements,