waterrower products

Digital Heart Rate Monitoring (ANT+)






The WaterRower S4 Performance Monitor utilizes your choice of either Polar or ANT+ technologies to provide advanced heart rate monitoring while you row.

The Digital Heart Rate Monitoring Kit uses state of the art ANT+ wireless technology to accurately measure heart rate and display it on the WaterRower monitor. The digital ANT+ kit differs from the analog Polar type kit (still offered) by its increased range and accuracy. With this technology, there is no longer a need for an extension to relocate and affix the monitor to the rail under the seat.

The ANT+ Digital Heart Rate Monitoring System is available in your choice of an external or internal receiver.

The S4 Heart Rate System displays the Heart Rate in the Heartrate window.

You may also set your required Heartrate zones, when you are above and below your set zone an audible and visual signal is produced, when you are in the zone, your relevant position is shown by the zone increment indicators.


The Heartrate Advanced function enables more detailed analysis of your Heartrate Zone workout including:

Peak Heartrate
Time spent above Zone
Time spent in Zone
Time spent below Zone

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