This is the radar gun that uses the same digital signal processing algorithms and target acquisition technologies as larger, bulkier radar guns yet easily slips into a shirt pocket. Suited for monitoring the speed of a baseball pitch, a professional race car, or tennis serve, it is accurate to within 1 mph, unlike other guns with a margin of error of up to 3 mph. It measures speeds as slow as 7 mph and up to 375 mph with a 20º beam width, and its range extends from 120' for measuring a baseball to 1/2 mile for a top-fuel drag racer. Stores up to 10 readings in memory and displays speeds in mph or kph in 3/4"-high numerals. Two included AAA batteries enable up to 10,000 readings. 4 3/4" H x 2 1/4" W x 3/4" D. (4 1/2 oz.)