Stalkerís Sport 2 Radar Gun is the lightweight, accurate and powerful baseball solution. Following success with previous Stalker Sport models, the Sport 2 includes an improved radar design, new modern components, and more accurate software. Designed for simple, baseball-specific operation, it's capable of displaying speed in either units or tenths. Two active speed windows allow you to see both peak speed and plate speed. The stopwatch function is also dual-purpose, simultaneously measuring pitches and timing runners (optional stopwatch cable required). The reduced size and weight improve comfort, without reducing functionality. At just 1.75 pounds (with batteries), it can measure up to 300 feet for baseballs and recall the five previous readings. Plus, it's tested for supreme accuracy. While most radar guns advertise "accurate to within +/- 1 to 3 mph." Stalker radar guns are typically accurate to within .1 (one-tenth) of a mile per hour and can measure 5-150 mph. Will operate in temperatures between -20F and +120F. Uses common AA NiMh rechargeable batteries or AA Alkaline (non-rechargeable) batteries, with a three-hour battery life and low-battery indication. Battery handle pap quickly snaps on and off. Includes a one-year warranty. 8"H x 3"W x 6.5"L.