Frequency Resoponse Of Optical Receiver At Different Bandwidth Scope is an SSI India product in the Electronics category. Key specifications include SKU: PFO-E449. In built Sine Wave Generator 0-1 MHz TECHNICAL SPECIFICATIONS. In built IC based Fixed DC Regulated Power Supply 0-6VDC/150mA. Optical transmitter 660nM. Optical Receiver Photo Transistor for