NSD Power Digital LCD Speedometer SM-02 for use with NSD Gyroscopic Spinner;

Kick Up Your Spinning Routine with the NSD SM-02 Precision Multi-Function Speedometer
Ramp up your spinning routine with this easy-to-install Precision Multi-Function Speedometer (SM-02) by NSD Power. This battery-free speedometer helps you improve on your workout with an easy-to-read backlit LCD display that shows your current total revolutions, speed in RPM, historical top speed in RPM and physical strength index. The cutting-edge design actually collects power via the Spinner’s rotor, so you never have to worry about replacing the batteries or keeping it charged. It also features a technologically advanced precision speed sensor to ensure that you get the most accurate readings possible.
The Perfect Complement to your NSD Spinner
The Multi-Function Speedometer is compatible with a wide variety of NSD hand, wrist and forearm exercisers. Its patented design works with the Essential, Fluorescent, AutoStart and Metallic (including Titan) series Spinners from NSD. It’s made for simple, hassle-free installation. Simply remove the top cap of your Spinner and snap on the SM-02. Because of its lightweight, streamlined design, the speedometer will not affect your performance or slow you down while you’re spinning. Please note that this is a patented accessory designed specifically for NSD Spinners. It will not work with other non-NSD gyroscopic hand and wrist exercisers.
• Works only with NSD Spinners
• Displays four different statistics
• Features digital LCD display
• Battery-free design