Replacement O-ring kit (Viton) - U12-015-ORING-V

Onset Computer Corporation has been producing data loggers for over 30 years. Our battery-powered “HOBO” data logger products measure and record temperature, humidity, light, energy, and a variety of other parameters.

Known for providing reliable, accurate data under tough environmental conditions, HOBO data loggers can be rapidly deployed in a range of monitoring applications, from measuring building energy performance to water and field ecology studies.

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