infants) are allowed only one piece of hand carry baggage onboard provided that it does not exceed the dimensions of 56cm x 36cm x 23cm and does not weigh more than 7kg. Such baggage must fit under the seat in front of you or in an enclosed storage compartment in the cabin. Items determined by us to be of excessive weight or size or of an offensive nature will not be permitted onboard.
While digital scales are very popular, still analog choose a steady stream of customers who year after year. Why is that? Well, more of a basic analog scale to be cheap and it does not require the use of batteries to run.
Since you got a cheap ticket to fly then use cheap scale to weight your limited cabin bag .