The 2032 Large Diameter Silicon Optical Receiver allows you to tweak your experiment without worrying about the beam wandering off the detector. Just position the 5.8 mm diameter, 190 to 1100 nm Silicon detector close to where you think the laser beam is and you'll see a signal. No more time-consuming and tedious photoreceiver alignment procedures. This free-space optical receiver has an 8-32 mounting thread and includes an M4 metric adaptor and tool.