This scale is used in conjunction with a crane that handles bulk and heavy materials, and offers further advantage with its wireless operation. Features and specifications: capacity - 300 kg-50 tonnes; used in vague sight, long distance, high temperature, obstructive, dangerous occasions/locations; operating range up to 100 metres, if no interrupting objects, with no direction limitations; rugged cast aluminium alloyed housing; safety overload 150% of the scale cap; ultimate overload 200% of the scale cap; specially protected load cell design to prevent damage or inaccuracy caused by overloading; and easy operated wireless remote controller [optional].