Don't buy this feeder
Documentation doesn't match interface. Help ticket went unanswered. Email for purchase must be email for app registration, which was the problem. App only has 9g portions, but dispenses 6-8 instead. Only whole portions, so only set multiples possible, which doesn't work for my cat's size. App doesn't register food eaten right away, so the reporting is not even vaguely accurate. App is buggy and under developed.