Truck scales are built from concrete and steel. They are built manage a loads of weight 24 hours all year long. The scales work truck with up to 80,000 pounds or 36,000 kilograms per load. Pounds is calculated by sensors that receive signals out of a junction packaging. Strain gauges, which are wires are baked into the concrete and a good electrical current running through them. These wires will compress when pressure by way of weight for this rescue truck is sensed. The actual load is then displayed on a monitor from a booth where the attendant records the dietary. It is vital that procedures are reliable and functioning, because they will aren't it might directly affect their wallets.
But you shouldn't be surprised if even the truck needs some help you. I spent a few hundred bucks to get my diesel powered dual wheel pickup to a place I understand. Then a few hundred more to get it to ready to tow the trailers It's my job to take along.