The Lascells simple timer is a fully functional easy to use millisecond timer and has a clear 4 digit LED display. Three sockets provide START and STOP inputs which respond to any change of switch settings i.e. normally closed to open or vice versa making triggering very simple and reliable.A single switch changes the timer from GATE 1 start and stop to GATE 1 start GATE 2 stop. In addition 3.5mm sockets are provided to allow Lascells timer light gates to be connected.The timer has millisecond resolution for times up to 10 seconds and then the display auto-ranges for longer periods up to 9999s with corresponding reduced resolution. Supplied with mains plug-top adaptor and full instructions.Suitable for use with the Lascells G By Freefall Apparatus and the Lascells Reaction Timer