Have had no previous problems. Have replaced the batteries and started 10 times and on different people. Same error -3 message keeps coming up.
SOURCE: I have the Prevention wrist monitor WS820 What
I had the err -3 problem, I replaced the two AAA batteries and now it's as fit as a fiddle.
Gary Friedman
SOURCE: I need the instructions for
You are spot on. It is a possible indicator for Atrial Fibrillation or AFIB. If you suspect that you have AFIB, you need to get your doctor to prescribe a digixon product, AFIB is very dibilitating and can cause death. Take care and seek help.... Guy
440 views
Usually answered in minutes!
×