The Pulsar-4 virtual laser power and energy meter (P/N 7Z01201) features a four channel interface the turns your PC or laptop into a full fledged Ophir multi-channel laser power/energy meter. Just install the software, plug the laser measurement sensor into the Pulsar and the USB cable from the Pulsar to the PC USB port. With the Pulsar-4, you can connect up to 4 laser measurement sensors to each module, monitor each pulse at up to 25 kHz and utilize external trigger.