PURPOSE: To easily verify existence of products and holding sequence in such a way that in a product feeding equipment equipped with a plurality of chuters, it provides a display unit which comprises a reference recording circuit, and a detecting circuit and a display circuit which are installed in response to each chuter.

CONSTITUTION: When a product is held in the n-th chuter, signals are transmitted as output from a detecting circuit Bn which is located in response to the chuter to a signal line l1, these signals transmit a piece of counting pulse to a counter 6 in a recording circuit (A), and the counter 6 counts up these pulses. Counging contents in the counter 6 are transmitted as output from terminals t1W t4. The counting contents are memorized into a latch circuit 10 by latch signals which are transmitted as output from a one-shot multiplex unit 9 in a display circuit Cn, and they are displayed through a counter 12 to a display element 13. Then, when the product is held into the n + 1st chuter, through the same process as stated above, the counting contents in the counter 6 are added up by + 1, and displayed to the display element 13 just the same as aforementioned.