1. Special for cement factory with easy and convenient operation. 2. Precise counting, high speed and durability 3. Available for single bag counting, continuous bags counting and batch counting. 4. Intelligent to identify continuous cement bags with the method of two-pass belt speed compensation. 5. Intelligent to identify small stack bag with the method of irregular continuous cement bags compensation. 6. Photoelectric isolation of signals and strong anti-interference 7. Storage function in case of power off to prevent data loss. 8. Elegant appearance, available for external connection with several large screen displays.