The Measure Master? scales can be used for a variety of different purposes including the precise measuring of fertilizers and dry nutrients. Measure Master? 400g High Accuracy Digital Scale features a very high accuracy 0.01g/oz graduation. Comes with a 3 in x 2.5 in stainless steel measuring platform and a durable, stable housing with protective cover. The Measure Master? scale displays weight in G, CT, DWT and OZ. Large, easy-to-read backlit digital display. Includes tare function with auto power off. 400g/0.9 lb capacity. Batteries included.