ATO crane scale is a hook scale that used for weighing the goods needed to be loaded/unloaded/transferred. It is usually installed under the crane or lifting equipment. A crane scale is consists of high-strength hook, shackle, display controller, load cell, metal casings, front and back covers and protection board. Crane scale has a special wireless infrared remote controller, and also can be connected to a large wireless screen for convenient reading. Because of the advantages of multi-functions, high precision, strong anti-cheating ability and low maintenance cost, now crane scale has been widely used for logistic/ warehouse/ factory/ dock/ trading market OCS (online charging system). The crane scales with capacity higher than 30 ton are used for material delivery in metallurgy, railway, industrial and mining companies.