This was quite accurate for our bags and it's small and very light-weight to take along to weigh for the way home, too.  I weighed one bag around 43 pounds and then held it on the scale.  Ready the same within 1/2 a pound (cannot recall exact difference but it was so close I didn't worry). When placed on the scale at the airport it was also really close.  So this is quite accurate and I'm really happy with the purchase.  It was really nice to have for the return trip so I could be sure the weight was evently distributed among our luggage and none of them was over 50 lb.