Checkweighers

Checkweigher: Measuring instrument which determines the mass of a package or product, usually as it travels along a conveyor that incorporates a weighing device. The mass of each item is recorded and any that fall outside pre-set values are rejected.
Weight Classifying Machine: Checkweigher that divides products into groups according to their mass.
Weigh Price Labelling Machine: A machine which incorporates a weighing device and a print and apply labeller, which measures the mass of a packaged product (such as meat, cheese, fruit or vegetables), calculates the price of the product and then prints both the weight and price onto a label which is attached to the product.