need info on rox 9.0 or 9.1.
 

has anyone have these an what are your thought on them?
are worth the money they getting for them?
how accurate are they?
i know your can download hr to your computers as a graph. this is what i want.
while riding with my hr dips into the 40 to 32 sometimes with my present hr monitor. i want to see for how long. i can't tell the duration. mine only shows av.,present and low hr.
i'm a retired nurse so i'm aware of my hr's while riding and i do know that i run a slow hr when not riding.

thank for your advice in advance,
mitch