Ray B.

I was having problems with my monitor so I called the number for service and advised what my problem was. After a short explanation the lady said to place the cuff on my left arm and tell her what the reading was. I did and it came up with an error code. She immediately said to change the batteries. She also said to use brand new batteries none that were older than 6 months. That solved the problem even though the batteries I took out tested good. Evidently the voltage of the battery was ok but when a load was placed on them the current requirements was too large. I also ordered an AC converter and now I get consistent readings. No more batteries for me.