PM4 Indoor Rower Performance Monitor | Concept2 Accessories

PM4 (Performance Monitor 4)

The PM4 is no longer available. If you are having issues with it and are not able to resolve them using troubleshooting, you can replace it with the PM5, available in our online shop. Please make sure you select the right machine when ordering, as retrofit instructions and components vary by machine.



Current PM4 Firmware versions are:

  • Indoor rowers—Version 332 or 29, depending on monitor age
  • SkiErgs—Version 732

Learn More | Update


  • Originally came with a rechargeable battery pack (no longer available) for use on some machines
  • Takes two D cell batteries


Date of Manufacture Location

To locate the date of manufacture on a PM4:

  • From the Main Menu, go to More Options > Utilities > Product ID and look at the value next to Datecode.

The year of manufacture is represented by the last four numbers of the date code. Any numbers before that indicate the day of the year. For example, 1562007, means the monitor was manufactured on the 156th day of 2007.

Note: This date code, the monitor serial number and hardware version will not change when firmware is updated.