About Onset

Onset's Main Headquarters in Cape Cod, Massachusetts

Want to learn more about working at Onset? Check out our video with first-hand employee interviews!

Onset’s mission is to be a global leader in data logger and monitoring solutions used to measure, record, and manage data for improving the environment and preserving the quality of temperature-sensitive products. We are committed to a culture of continuous improvement, innovation, and world-class customer support.

Our award-winning HOBO® data logger and weather station products are used around the world in a broad range of monitoring applications, from verifying the performance of green buildings and renewable energy systems to agricultural and coastal research. Our InTemp® loggers dramatically simplify the process of monitoring temperature-controlled environments by streamlining daily temperature checks and reducing the paper trail burden.

Based on Cape Cod, Massachusetts, Onset has been designing and manufacturing its data loggers and monitoring solutions on site since the company's founding in 1981.


Company Timeline

  • 2018

    Introduced HOBOnet Field Monitoring System

  • 2018

    Introduced the HOBO MX2501 pH Logger

  • 2017

    Introduced the HOBO MX2200 Series outdoor Bluetooth temp/light data loggers

  • 2016

    Introduce the MX2001, MX100, H21-USB Micro Station and MX2300 Temp/Rh Outdoor Loggers

  • 2016

    Introduce the InTemp Product Line - CX400 Series

  • 2015

    Introduced the HOBO RX3000 Station and MX2001 Data Logger

  • 2014

    Introduced the MX1101 Temp/RH logger for mobile devices

  • 2013

    Introduced the UX100 Series Temperature/Relative Humidity data loggers

  • 2012

    Introduced the HOBO U26 Dissolved Oxygen data logger

  • 2012

     Introduced the UX90 Series Time-of-Use data loggers

  • 2010

    Introduced the HOBO U24 Conductivity/Salinity data loggers

  • 2009

    Developed the HOBOnode Series wireless sensors

  • 2008

    Introduced the HOBO U30 web-based monitoring platform

  • 2006

    Sold 1 millionth data logger

  • 2005

    Developed HOBOware cross platform data logging software

  • 2004

    Developed 15-channel modular energy monitoring system

  • 2001

    Established market for mid-range, research-grade weather stations

  • 1997

    Purchased 40,000 sq. ft facility

  • 1995

    Developed first optic data shuttle

  • 1991

    Developed first under - $100 temperature logger– The original HOBO

  • 1981

    Ellen and Lon Hocker developed first low-power data logger in their Falmouth, Massachusetts barn