Precise, efficient and versatile, the constant temperature heaters Felisa operate from ambient temperature +5° to 120 °C. This multipurpose unit is ideal for incubation and activation of cultures, enzyme reaction, blood urea nitrogen determinations, melting and boiling points, and a wide variety or other laboratory procedures. Each model accommodates different tube size from separate, modular heating blocks. With integrated heating element die cast aluminum housing. These efficient large mass heaters allow you to have an exceptional temperature uniformity.