Sti Photoelectronics 41520-0040 F3ILP-20 HTC Fiberlens Preamp is a high-temperature fiberlens preamplifier. The F3ILP-20 HTC variant identifies the model, and the unit features a 20-foot length (20’). This STI preamp is designated by part number 41520-0040 within the fiberlens product line.
