The DET100A2 from Thorlabs Inc is a Biased Silicon Detector Module that can detect light signals in the wavelength range from 320 to 1100 nm. It has a photodiode with an active area of 75.4 mm2 and delivers an output current of up to 10 mA. This detector has a rise time of 35 ns and a peak response of 0.72 A/W. It has a bias voltage of 10 V and a dark current of up to 10 nA. It has a removable 1" optical coupler that provides easy mounting of ND filters, spectral filters, fiber adapters (SMA, F and ST style), and other 1" stackable lens mount accessories. This detector can be operated using a 40 mAh 12 V battery and is available in a package that measures 70.9 x 49.8 x 22.5 mm.