The FPM-21/22 series is a new generation of Laser Power Meter family, which comes with improved stability and accuracy, enhanced features and large LCD display. Its Reference Value availability makes it an ideal test set for loss performance on optical fiber. It offers accurate, wide dynamic range wavelength from –70dBm to high measurement capability up to 26dBm. It is suitable for various fiber types such as G.652 and G.657.