Color-screen Wall-mounted Payment Terminal with QR Scanner

1. Display: 2.8-inch color TFT, 320×240, shows name, card No., amount, cash balance and subsidy balance 2. Voice: 4 Ω/3 W speaker, 1–8 levels, key beep, balance announcement, Chinese/English switching 3. Language: Simplified/Traditional Chinese, English 4. Serial port: supports external receipt printer, scale and cashier device 5. Audio: supports 3.5 mm external speaker 6. Communication: Ethernet (RJ45), Wi-Fi module, 4G module 7. Payment: real-time card, NFC, QR code (customer + merchant scan) 8. Consumption modes: manual, fixed, menu, download, count, timing 9. Limit control: supports per-card and per-period amount/count limits 10. Time slots: supports setting consumption periods and allowing different user categories in different periods 11. Card capacity: 1,000,000 cards (standalone); unlimited (real-time/cloud) 12. Top-up: supports on-device top-up 13. Statistics: query daily/per-period collection amount and count on-device 14. Records: supports querying up to 255 transaction details on-device 15. Subsidy: supports subsidy by user category 16. Discount: supports discounts by user category 17. Category charging: in download mode, set different amounts by period and user category, and different amounts for 1st/2nd/3rd consumption 18. Backup battery: built-in 1000 mAh, lasts 3–4 hours in power outage 19. Material: ABS 20. Porcelain White, Sapphire Blue, Midnight Black 21. Power adapter: input 100–240 V; output DC 12 V / 1 A 22. Operating temperature: -20 to +45 °C 23. Storage temperature: -30 to +70 °C 24. Humidity: 95% non-condensing 25. Dimensions: 250×139×60 mm. 27. Alipay auto-deduction, campus-only, requires Alipay merchant, cloud version only