Versatile compatibility Designed for general use with rowing machines and compatible fitness bike setups, this monitor counter integrates seamlessly, making it a practical replacement monitor speedometer for stationary bike or rowing machine instrument panel needs. Realtime performance tracking Displays time, speed, and calories to help you stay focused on goals; includes heart rate sensing capability when used with a separately purchased accessory for enhanced training perception. Lightweight and easy installation Constructed from ABS plastic for long lasting wear resistance, weighing only about 150g; features a 60mm bolt fixing hole diameter and a 2pin connector for quick setup, with heart rate sensing wire and speed sensing line included. Userfriendly interface Simple button operation and clear LCD screen size approx. 44.6x20mm provide an intuitive experience to monitor progress during any indoor fitness session without complicated adjustments. Use scenarios At home on a rowing machine or stationary bike: a worn monitor to track time, speed, and calories, with optional heart rate sensing when you have the accessory. In a gym or studio with mixed equipment: quickly swap between machines thanks to the compatible design, keeping track of performance data during group sessions or circuits. During interval training or coaching: rely on the lightweight unit for easy mounting and a clear display to monitor progress between intervals.