I have a timex t5h881 heart monitor and I can't find the user manual. The problem I have is that when I'm using the heart rate monitor mode, I have a "beeping" and a "LO" symbol next to my displayed heart rate. Can anyone tell me why this is happening and how can I fix this issue?
Go to https://www.timex.com/watch-manuals.html
and search for - t5h881
Its there.
SOURCE: Heart rate monitor reading "lo"
to shutoff HR out of range alarm - when selecting the ranges in the HRM Steup mode - press the START/SPLIT button to toggle the alarm on and off. (use the start/stop button on the pro fitness model). page 14 in my manual
Make sure the back of the watch is spotless and your skin isn't too dry.
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