For sale is a used Cobra Speed Monitor. These were made by Accusport for Corba to assist in club fittings. Everything works. I've only used it a few times. Will esitmate club speed, ball speed launch angle, and distance. Below is from the include manual.

THE MONITOR TRANSMITTER AND RECEIVER WORK TOGETHER TO CREATE TWO VERTICAL CURTAINS OF INFARED LIGHT. AS THE BALL PASSES THROUGH THESE CURTAINS OF LIGHT, THE SYSTEM MEASURES SPEED AND LAUNCH ANGLE. THE MONITOR USES THIS INFORMATION TO COMPUTE ESTIMATED CLUB SPEED AND DISTANCE.

THIS SYSTEM WILL PROVIDE YOU WITH BALL SPEED, LAUNCH ANGLE, CLUB SPEED AND DISTANCE

THE SYSTEM WILL RUN ON AC POWER BUT THERE IS A RECHARGEABLE BATTERY INCLUDED INSIDE THE UNIT THAT MAY LAST FOR 7-8 HOURS AND REACHES FULL CHARGE IN 4 HOURS.

YOU GET EVERYTHING YOU SEE IN THE PHOTO:

SPEED MONITOR TRANSMITTER SPEED MONITOR RECEIVER POWER CORD CONNECTOR CABLE USER GUIDE CARRY BAG