Reputation of being easy to use and reliable. Features include: 3 digit LCD display with 1 MPH or 1 Km/h resolution (user selectable display units), tripod mount, large display adapter, battery or AC adapter powered. Two modes of operation: Trigger mode - takes a reading when the trigger is pulled, and the Continuous mode - always ready to take a reading. Great for single person use, put the SR3600 in continuous mode and you can throw, kick, pitch or hit into a net, and get every speed. The SR3600 has a RS232 communication Data Port allowing communication with your PC (feature requires DB9/RJ45 adapter sold separately).