We have replaced this Model with a less expensive alternative. Please see LS-2070031 MagnaAmp Ampoule IncubatorThe Model 1501 Incubator features 14 incubation cavities for 57°C incubation of MagnaAmp® Ampoule Biological Indicators. Each incubator kit includes a thermometer for convenient temperature verification. 120V; 90 Day Warranty.