The RapidFISH slide hybridizer is designed to simplify fluorescence in-situ hybridization (FISH) procedures for FFPE tissue samples, cell suspensions, and other tissue preparation procedures. FISH testing is used worldwide to identify biological markers in the form of DNA/RNA. Temperature control and humidity are essential for FISH probes to bind to RNA and DNA. RapidFISH has a self-clamping slide tray design that maintains the required humidity; microscope slides in RapidFISH do not require coverslips to be glued, because the removable tray of the slide incubator traps moisture in the system. Elimination of this step decreases processing time and ensures that the specimens stay hydrated during processing. RapidFISH features an easy-to-use control system for regulating temperature and time. It has a small footprint yet still maintains excellent temperature stability and uniformity because of its dual-heater convection system.