But for timing and counting of multiple events, even some powerful computers can come up short. An idea whose time has come. In the past, if you wanted to measure multiple events, you were forced to connect and synchronize multiple timers and counters. But its versatility goes far beyond that. It also comes with an AC adapter.
All connections are easy - either by a screw terminal or optional banana plug adapter.
It's portable and far less expensive than a computer. This battery-powered photocell is ideal for outdoor timing. It is designed to generate an infrared beam. An LED indicator displays signal strength when the infrared photocell is correctly aligned with the reflector. Model 63501CBL and Model 63504 are available but are not included.