The ROF-APR-1G from Beijing Rofea Optoelectronics is a Photodetector with Wavelength Range 400 to 1700 nm, Supply Voltage ±15 VDC, Bandwidth 100 kHz to 1 GHz, Active Area Diameter 50 to 200 µm (Photosensitive). More details for ROF-APR-1G can be seen below.