{"product_id":"doorking-1837-090-90-series-intercom-system-with-lcd-heater-and-tcp-ip-adapter-surface-mount","title":"DoorKing 1837-090 90 Series Intercom System with LCD heater and TCP\/IP adapter, Surface Mount","description":"\u003cdiv id=\"pdp_productoverview\" class=\"rd-hyg-etl-wrapper\"\u003e\n\u003cdiv class=\"sc-bczRLJ iwaCMW\"\u003e\n\nThe 1837 90 Series stores up to 3000 phone numbers and 8000 device codes and can be expanded to control up to 48 wired access points with optional Tracker Expansion boards (up to 24 wirelessly).  The 90 Series housing offers a streamlined look, has enhanced locking and weather sealing and provides easy internal installation of optional components such as a card reader, LCD heater and TCP\/IP adapter for a direct internet connection.  The 1837 is still available in the original 80 Series (surface and flush mount) housings, click the button below to view the 80 Series product page.\n\n\u003c\/div\u003e\n\u003ch3 class=\"TypographyStyle--11lquxl bMPEkV titleText\" data-test-selector=\"OverviewTitle\"\u003eMain Features\u003c\/h3\u003e\n\u003cdiv class=\"sc-bczRLJ iKBAtS\"\u003e\n\u003cul class=\"mainfeatureslist\"\u003e\n  \u003cli\u003eProvides both resident and visitor Access Control into and within apartment buildings, gated communities, condominiums, office buildings, factories and industrial sites\u003c\/li\u003e\n  \u003cli\u003ePC programmable – Programming and Transaction Analysis software Available for Download at doorking.com\/software\u003c\/li\u003e\n  \u003cli\u003eVoice and Data Programming Connection via Cellular, Internet, or Copper POTS Lines\u003c\/li\u003e\n  \u003cli\u003eBuilt-In Electronic Directory\u003c\/li\u003e\n  \u003cli\u003eLarge, Easy-to-Use A-Z-CALL Buttons\u003c\/li\u003e\n  \u003cli\u003eResident Access Control is provided by means of Cards, Digital PIN Codes, or Wireless Transmitters.\u003c\/li\u003e\n  \u003cli\u003e2-Year Limited Factory Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DoorKing","offers":[{"title":"Default Title","offer_id":43250713428033,"sku":"7L-1837090","price":5515.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/2465\/9009\/files\/91f504e0-7l-1837090.jpg?v=1773112199","url":"https:\/\/www.fireandsafetyplus.com\/products\/doorking-1837-090-90-series-intercom-system-with-lcd-heater-and-tcp-ip-adapter-surface-mount","provider":"Fire and Safety Plus","version":"1.0","type":"link"}