Germany FEMTO company develops and produces a weak signal recovery equipment leader, the production of current, voltage amplifier module, lock-in amplifier module is widely used in the field of research and development, the majority of research work of love. Product features: up to 45 kHz operating frequency digital phase shifter 0 ° -360 ° current and voltage input parameters concise and anti-electromagnetic interference control measures applied by the local switch and optically isolated digital inputs: luminescence spectroscopy, fluorescence, phosphorescence measurements Optical Quality Control light scattering measurements comprehensive industrial and scientific measurement system