The master 40 will drop kick your samples from the "to be prepped" rack, to the "ready for analysis" rack in no time! Backed by Buck Scientific's legendary customer service, this import from Shanghai is ready to digest samples, and take care of your extractions with the push of a button. The engineers at Sineo took notice of the advances in microwave digestion over the past ten years, and incorporated the best advanced into the design of the Master 40. Ideas which were adopted and improved upon like the IR thermometer, outer vessel safety casings and the external vessel holders found in the master 15.