This versatile Timer has a bright red digital display for classroom work. The sloping front panel makes viewing and using the instrument easier. This model is very similar to the LB4064-101 but is lower cost because it has no power for Photo Gates or automatic solenoid ball release control for the 'Free Fall' experiment. Timer is microprocessor controlled and is very fast. Autoranging permits times up to 99.9999S by 0.0001S and up to 999.999S by 0.001S. Selectable modes are: Start/Stop, PhotoGate, Period and Pendulum. Stores 20 memories that can be added, averaged, purged or cleared. see the PDF file for full details. Refer also to LB4064-101 and LB4064-001 for variations to this model.