The qTOWER3 product family assures accurate, real-time PCR results that benefit from precise temperature control in the sample block, regardless of the number of samples used. A patented, fiberoptic shuttle system with its unique light source, composed of four high-performance LEDs, guarantees the ideal excitation of known fluorescent dyes up to the deep-red range. In the process, the detection module can accept up to six different color filter modules. The silver-block technology of the quantitative PCR cyclers offers fine control of ±0.1°C over the entire 96-well block in a 0.2-mL format. Thanks to the gradient function, the device can be optimally adapted to new assays. Cyclers are available either as standalone devices with integrated touchscreen operation (10 in.) or as computer-aided systems. The software includes a broad spectrum of optimized analysis algorithms, including absolute and relative quantification, delta-delta cycle threshold (ddCt) method, PCR efficiency, allelic discrimination, endpoint detection, and melting curve and protein analysis.