ROF Optical Photonics 200M Balanced Light Detection Module Balanced Photodetector ROF -BPR series of balanced light detection module integrates two matching photodiode and an ultra-low noise transimpedance amplifier, effectively reducing the laser noise and common mode noise, improving the ... Inquire Price Sold by: Beijing Rofea Optoelectronics Co,. Ltd. Ships from: China Specifications Material: Silicon (Si) Spectral Range: 320 – 1000 nm Mounting: Mounted