The constant scale 14192 182c is a mini digital scale that can be used to weigh any object with a maximum weight of 200g.The scale is usually used to weigh gold, but it may also be used to weigh foodstuffs, such as wanting to weigh how much sugar or other spices because it has a measuring bowl, so it can hold objects and will not fend anywhere.Because it's small so it doesn't eat much space and it can also be taken anywhere. the operating system uses a battery of 2 aaa size (the battery is already included in it).