The same as the SR3600 but will read down to 4mph. The SR3600-LS Radar Gun is a precision training instrument. You can measure the speed of baseballs, softballs, tennis, hockey, automobiles and even forklifts just to name a few. The SR3600-LS is for coaches, players and enthusiasts. Read accurate ball and swing speeds for various sports, including but not limited to: baseball, softball, tennis, bowling, golf, auto racing, and more. The SR3600-LS is a full featured, reliable, durable and easy to use. Just point and pull the trigger and the target speed is displayed. Our advanced microprocessor based speed detection calculates speeds in just a few feet of target travel. Sports Radar is the pioneer of the Hands Free Mode which allows an individual to read the speed of various targets for training purposes without another person being present. Our Data Port is a feature not found on any other radar gun in this class. The Data Port enables the use of our large displays for remote viewing or for connection to a PC/Laptop with our optional software package for statistics tracking. The SR3600-LS is the best price/performance radar gun available. SR3600-LS: Speed Range: 3 to 250 MPH Lightweight high impact resistant design Point and Shoot technology Range: typically 60' on balls, 200' on cars Resolution + or - 1 MPH Displays speeds in MPH or Km/H Trigger or Continuous modes Tripod Mount included (Tripod sold seperately) Data Port (For use with our optional External Displays or PC Softwre) sold seperately External Power Jack (For use with wall power adapter sold seperately) Audio Indicator Standard 9V battery operation (2 required sold seperately) Battery life: 20 hours Low Battery Indicator Weight: 1.0 lbs. 1 Year Limited Warranty MADE IN THE USA Optional External Large screen Displays available Optional PC Software for statistics tracking