Phone Holder for Concept 2 Rowing Machine Monitor, Adjustable Rotatable Smartphone Cradle / Phone Mount Compatible with PM 2/3/4/5 Monitors of RowErgs, SkiErg and BikeErg (Concept 2 Rower) - Black
Scullr GPS rowing computers - Home Page
Rowperfect Coxmate GPS - a Luddite is won over - Girl on the River