Profile: Berthold Detection Systems Gmbh specializes in the development, manufacturing and distribution of biomedical detection systems. Our product categories are tube luminometers, and microplate luminometers. Our instruments help in the measurement of bio & chemiluminescence. Our products find applications in clinical diagnostics, fundamental research, drug development, process measurement, and environmental measurement. Our FB12 luminometer features advanced photon-counting electronics coupled with a highly sensitive detector, providing the lowest signal background and highest linearity. It requires no cumbersome internal calibration or gain switch. Light collection is maximized through both the proximity of the sample to the detector and the use of optimized light reflectors surrounding the sample vial. As a result, reporter gene assays using firefly luciferase can now detect less than 1000 molecules of the enzyme with the FB12 luminometer. Our Sirius luminometer measures standard glow chemistry of single samples from a variety of sample formats.