such as double the battery life (up to 10 years) and 19x larger built-in memory

An affordable and accurate data logger that measures oxygen levels in lakes

Also measures temperature and is often used with optional solar radiation shield (RS1 Solar Radiation Shield" or M-RSA)

New product 2024 which is smoother

HOBO Optisk USB Basstation Variant:Vattentät such as double the batteryA USB base station with optical readout used to dump data from all Onset data loggers that use optical communication. Optical loggers part numbers usually start with "U". Examples: U24 001, U20L, U26 001 "UX" loggers have a USB connector and do not require a base station. Connects to PC via USB and a logger using the included adapters. Adapters for all HOBO models are always included with the base station, but can also be purchased separately if