We don't need a lot of maintenance we did need some training. We luckily received a grant so we could budget that into the grant. Cleaning supplies is a constant cost. We have tried spray and paper towels and we have tried disinfectant wipes. It has been four years and all of our batteries have finally died. We now need to replace the batteries in all 200 watches.

Has anyone tried using the heart rate monitors in an elementary setting? I am curious about getting a classroom set (approximately 20) so that the students can share them between classes. We purchased two for use and the students do enjoy testing their heart rates to assess how hard they are working. Some of the students say that their chests hurt, but in reality they do not understand that they are just working hard. We have the kind where the students wear them on their wrists and use two fingers to check their pulse. Are the Polar models good for elementary school students? I am just looking to see if they are easy to use but the kids do catch on quick with technology.