Optima Scales OP-934 heavy-duty truck Scale is designed with modular bolt together system for weighing truck axles for DOT purposes. The patented modular design has the capabilities to more platforms down the road. Extends up to 70 ft or longer. The scale weighs up to a 60,000 lb or 120,000 lb capacity and 10-20 lb readability. Our OP-934 is ideal for portable applications or for weighing large odd size pallets on the go.