Weighing sales system and weighing device

The invention provides a weighing sales system capable of providing any quantity of goods. The weighing sales system 1 is provided with a plurality of weighing devices 3 for weighing commodities and an information terminal 4. The weighing device (3) is provided with: a detection processing unit (301) that detects the weight of a product; and a communication processing unit (303) that transmits the detected weight of the product and the predetermined identification information. The information terminal 4 is provided with: a communication processing unit 406 that receives the weight of the product and predetermined identification information; and an extraction processing unit (402) that acquires the product information from the product information storage unit (4A) on the basis of the predetermined identification information. 提供了一种能够提供任意量的商品的称重销售系统。称重销售系统1设置有对商品进行称重的多个称重设备3以及信息终端4。称重设备3设置有：检测处理单元301，其检测商品的重量；以及通信处理单元303，其传输检测到的商品的重量和预定识别信息。信息终端4设置有：通信处理单元406，其接收商品的重量和预定识别信息；以及提取处理单元402，其基于预定识别信息从商品信息存储单元4A获取商品信