Em50 & Em60

a low-cost, basic data logger


  • Em50: 5-channel data logger
  • Em60: 6-channel data logger
  • A low cost, plug and play data logger for Decagon / METER Environmental sensors
  • Large internal storage of 36,000 scans
  • Power supply from 5 x AA batteries for at least 6 months
  • USB download for rapid data collection
  • Environmental proof enclosure
  • Simple, pre-programmed and ready to go

The Em50 and Em60 are self-contained data loggers built to power, read, and log data from five sensors. All METER Group sensors work with the Em50 and Em60; no programming is necessary.

The Em50 doesn’t need an enclosure or an external power source. The logger case itself is rated NEMA 4, IP55 for long-term outdoor use, and the logger will run (and power its sensors) for one to three years, depending on your measurement interval, on 5 AA batteries.

The Em50 has 5 sensor ports and one communication port. The Em60 has 6 sensor ports and one communication port.

Rather than having a screen and a keyboard, the Em50/60 is configured by plugging a laptop into the comm port. The included ECH2O Utility software provides setup windows which name the logger, set the logger clock, select the type of sensor on each port, and specify how often you want the sensors read.

The Em50 can store more than 36,000 data scans. A scan includes the logger name, date, time, and measurements from each of the five ports.


ECHO utility software

The ECHO Utility Software is a free to download interface software for the Em50 Data Logger.

  • Use ECHO Utility to configure your Em50 Data Logger.
  • Data is downloaded as an Excel file.
  • Calculate how many days of storage you have based on your preferred measurement interval.
  • Monitor battery life.
  • Name data logger, set date, time, and measurement interval, and specify sensors for each port using drop down menus.
  • Download both calibrated and unprocessed data to MS Excel or DataTrac.
  • Connect to ECH2O loggers directly or with radio telemetry.
  • Set all logger configuration parameters with visual controls.
  • Make real-time sensor measurements (scan sensors).
  • Create Excel or text files with raw or processed data.
  • Create configuration and data files for use with DataTrac.
  • Process data downloaded with ECH2O Utility Mobile.
  • Test the quality of radio telemetry connections.
  • Hard disk with 20 MB of free space.
  • Windows XP with 128 MB RAM.
  • Available serial port (or USB to Serial adapter).
  • Microsoft Excel 97 or better (if saving data as xls files).



  • Sensor Input: Decagon/METER Group range of sensors only
  • Number of Channels: Em50: 5; Em60: 6
  • Data Download: Direct with USB to Excel file
  • Software: Free download of ECHO Utility Software
  • Data Storage: 36,000 scans
  • Power Supply: 5 x AA Batteries (potentially up to 12 months life)
  • Optional Power Supply: Built-in solar panel and lithium-ion battery
  • Logging Interval: 5 minutes to 12 hours
  • Enclosure Rating: IP55, NEMA 3R
  • Enclosure Dimensions: 12.7 cm x 20.3 cm x 5.1 cm
  • Operating Environment: -40 to 60 °C, up to 100% RH

manual & docs

related products