Stalker Sport 2 Radar - Scout Package. Free UPS Ground Shipping is back. Your order ships directly from the Stalker Radar factory. Choose the brand that all of the Major League teams use - Stalker Sport Radar. Direct from the manufacturer at the lowest available price 300-Foot Range, farther than any competitor! Measures ball speeds from 5-150 mph. Accurate to +/- 1 mph Captures release speed and plate speed simultaneously Built by the industry leader - Stalker Radar