Trusted to Monitor Temperature for More than 40 Years 

If you need to monitor temperature, you need the best data logger that puts the most accurate, reliable data at your fingertips. Versatile and compatible with multiple remote monitoring solutions, our temperature loggers can be used in countless applications. Trusted for more than 40 years, Onset's HOBO data loggers are used to monitor harsh outdoor environments and underwater for environmental research, farming, irrigation, and urban infrastructure projects, made rugged to withstand the elements and monitor Indoors, our temperature data loggers help identify energy inefficiencies, building performance and more.

To meet the critical compliance requirements for cold chain, our InTemp temperature data loggers deliver crucial data that protects temperature-sensitive products—vaccines, pharmaceuticals, and shipments—from the first to last mile.