Powerball Digital Speed/RPM Meter.
The digital speed meter is the perfect companion for any Regular 250Hz or Standard Neon model and will allow you to keep an accurate record of your performance on these excellent training devices.
The digital speedmeter has 3 unique modes of operation:
The speed meter simply clips onto the top of any regular 250Hz or neon Powerball after first removing the hard plastic cap.
Although the meter can be attached to any powerball except the Techno (which has a different system), it is usually used to upgrade Regular 250Hz and Neon Powerballs which do not come with a counter.
Note this RPM Counter is only designed to be used with Genuine Powerballs.