TELEPHONE ENTRY & ACCESS CONTROL
The 1837 80 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 80 Series is available in Surface or Flush mount styles. The 1837 is also available in the new 90 Series housing, click the button below to view the 90 Series product page.
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