This is an application that assists our companys electronic scales. It communicates with the scale by means of low energy Bluetooth and WiFi-UDP. The main functions include: viewing, adding, modifying, deleting, uploading and downloading of commodity information; viewing, modifying, uploading and downloading of scale parameters; viewing, adding, modifying, deleting, uploading and downloading of member information; viewing, uploading and clearing of member recharge and consumption records; uploading of transaction records; report generation; communication with other mobile devices/computers (low energy Bluetooth, WiFi-UDP , WiFi-TCP), collecting transaction records received by other mobile devices/computers for report generation (The other mobile devices/computers from which the information is collected have corresponding servers, which must be started before collection of the information.).