ROF -BPR series of balanced light detection module (balanced photodetector)integrates two matching photodiode and an ultra-low noise transimpedance amplifier, effectively reducing the laser noise and common mode noise, improving the system's noise ratio, having a variety of spectral response optional , Leech lûd, hege winst, maklik te brûken ensafuorthinne, wurdt benammen brûkt foar spektroskopy, heterodyne deteksje, optyske fertragingsmjitting, optyske gearhing tomografy en oare fjilden.