The MAR-100 Marine mini-scale by On Balance is a world first! It is the very first mini-scale to have been awarded the IP-65 certification against water and dust ingress which could ruin other scales. The testing was carried out in an independent UK testing laboratory.The MAR-100 weighs up to 100 gr. with an accuracy of 0.01 g. When this unit gets dirty or sticky you can simply rinse it off under the tap and it will be as good as new.Weighs in grams, ounces, troy ounces, penny weights, grains and carats. Mini-screwdriver and 2 x AAA batteries included.MAR-100 dimensions: 124 x 68 x 22 mm.This scale carries a 3 year limited warranty.