| Product Parameter | Parameter Description |
| S4A Model | M12 |
| Product Name | Standalone Access Control |
| Card Type | 125KHz EM Card |
| User Capacity | 10,000 card users |
| Keypad Characteristic | Operate by infrared remote control |
| Output Way | Contains reader mode, the transmission format could be adjusted by users. |
| Admin Card | Support admin add card, admin delete card and setting card |
| Unlocking signal | The unlocking signal adopts NO,NC,COM output of relay |
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