SPORTS SENSORS Arrowspeed RADARchron compact arrow speed timer for archery

Fine-tune your bow with your very own Arrowspeed RADARchron arrow speed timer from Sports Sensors, Inc.

This small, compact and easy-to-use radar comes at an affordable price. It will easily fit in your toolbox and measure the speed of your aluminum and carbon arrows from 150 to 450 feet per second with an accuracy margin of 2%. It attaches easily to your bow's stabilizer screw thread and measures arrow speed using Doppler technology. The big advantage of this microwave technology is that it's not dependent on brightness. Controlled by a microprocessor, it works equally well in artificial light indoors and outdoors, and is not affected by environmental parameters that generally affect the operation of other brands of outdoor speed sensors.