HOBO MX1101 Bluetooth Temp/RH Logger

Measures and transmits temperature and relative humidity data wirelessly to mobile devices via Bluetooth Smart technology.

The self-contained wireless data logger, which works with Onset's free HOBOConnect app for logger setup and data management, enables you to access data anytime from mobile device for iOS or Android over a 30m range, and it requires no dedicated equipment beyond a mobile device for configuring the logger or reading out data.

View data in graphs, check the operational status of loggers, configure alarm notifications, and share data files.

  • Wireless communication via Bluetooth Smart
  • Easy to deploy and offload
  • Visual and audible high & low alarm thresholds
  • Stores 84,000 measurements
  • Accuracy: +/- 0.2C and +/- 2%RH
  • Find me/pager feature



Temperature Sensor

  • Range: -20° to 70°C
  • Accuracy: ±0.21°C from 0° to 50°C
  • Resolution: 0.024°C at 25°C
  • Response Time: 7:30 minutes in air moving 1 m/s

RH Sensor (Per RH sensor manufacturer data sheet)

  • Range: 1% to 90%
  • Accuracy: ±2% from 20% to 80% typical at 25°C
  • Resolution: 0.01% at 25°C
  • Response Time: 20 seconds to 90% in airflow of 1 m/s


  • Transmission Range: Approximately 30.5 m (100 ft) line-of-sight
  • Wireless Data Standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0)
  • Logger Operating Range: -20° to 70°C ; 0 to 95% RH (non-condensing)
  • Battery Life: 1 year, typical with logging interval of 1 minute.
  • Battery Type: Two AAA 1.5 V alkaline batteries, user replaceable
  • Memory: 128 KB (84,650 measurements, maximum)
  • LCD: LCD is visible from 0° to 50°C; the LCD may react slowly or go blank in temperatures outside this range


HOBOConnect App

Onset's free HOBOconnect app makes it fast and easy to configure compatible HOBO MX Series data loggers and manage the collected data. Just download the app from the Apple App Store or Google Play to your mobile device, or download from the Onset website to your Windows computer. With HOBOconnect, you can view data in graphs, check the operational status of loggers, share data files and graph images for analysis in Excel, Numbers, and other applications, plus store data in the cloud. HOBOconnect also lets you quickly set up audible alarm notifications, so you're immediately alerted to any problems.

  • Communicates to HOBO MX data loggers using Bluetooth (LE) technology
  • No internet connection required
  • Set data logger's name, password, logging rate, alarm threshold, start and stop time
  • Automatically upload data to Onset's cloud-based HOBOlink software to store and merge data files
  • Configure and clear audible alarms
  • Page the data logger
  • Quickly download and view data


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MX1101 brochure

File Size 855KB   Filename onset-hobo-mx1101-data-logger.pdf   Download

Related Pages

Temperature and Heat Flux

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