Metallic Series – Monitor: Ratio (S4 and S4 Bluetooth Monitors) The video below applies only to Metallic Series rowers equipped with the S4 Monitor and S4 Bluetooth Monitor. Related Tagged: metallicmonitorservice videos Was this article helpful? Yes No Related Articles Metallic Series – Full rower assembly animation Metallic Series – Monitor: Calories Burned (S4 and S4 Bluetooth Monitors) Metallic Series – Monitor: How to replace the batteries (S4 and S4 Bluetooth Monitors) Metallic Series – Monitor: How to replace the circuit board (S4 and S4 Bluetooth Monitors) Metallic Series – Monitor: Overview of features (S4 and S4 Bluetooth Monitors) Metallic Series – Monitor: How to replace the monitor housing (S4 and S4 Bluetooth Monitors)