After hearing the wrist one is no good, I went to Rite Aid and bought the Omron Hem 705 Arm one. They were out of the 711, so the pharmacist recommended this. It has a print out and everything.
Anyway, I tested it against my wrist one and guess what? They were not off by very much.....The arm was 114/68 and wrist 108/68.
Am I okay with this monitor????