{"product_id":"access-controller-adc-eg4-asc2204c-s","title":"Access Controller ADC-EG4-ASC2204C-S","description":"¡¤    TCP\/IP communication.\u003cbr\u003e¡¤    Two communication protocols: RS-485 and Wiegand.\u003cbr\u003e¡¤    Supports storing 100,000 user and 500,000 card-swiping records.\u003cbr\u003e¡¤    Supports multi-door interlock, multi-user unlock, anti-passback, and remote unlock.\u003cbr\u003e¡¤    Supports reader tamper alarm, intrusion alarm, unlocking timeout alarm, duress alarm, invalid card exceeding threshold alarm, and incorrect password alarm.\u003cbr\u003e¡¤    Supports built-in RTC, manual time fixing, and automatic time fixing.\u003cbr\u003e¡¤    Data can be saved permanently in case of power failure; supports online upgrade.\u003cbr\u003e¡¤    Power supply through storage battery.\u003cbr\u003e¡¤    Supports watchdog mechanism to ensure the operation stability","brand":"Dahua OEM","offers":[{"title":"Default Title","offer_id":50085334712617,"sku":"ADC-EG4-ASC2204C-S","price":455.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0775\/9432\/9385\/files\/ADC-EG4-ASC2204C-S_1.png?v=1742856956","url":"https:\/\/www.bestcctvshop.com\/zh\/products\/access-controller-adc-eg4-asc2204c-s","provider":"Best CCTV Shop","version":"1.0","type":"link"}