This is a Yaohua XK3190-A9 digital weighing scale indicator designed for industrial weighing systems. It uses high-precision \(\Sigma -\Delta \) A/D conversion technology. It is widely applied in electronic floor scales, truck scales, and weighbridges. The indicator is housed in a durable plastic enclosure and supports AC/DC power supply with an external rechargeable battery. It can store up to 1000 groups of vehicle numbers and 1001 groups of weight records.