DoorKing 1877-010 Telephone Line Surge Suppressor gate-operator-part Verify compatibility with your model

Verify compatibility with your model before purchase

Elevate your gate system’s safety and compliance with the LiftMaster S505AL Small Profile Monitored Safety Edge (5ft)

Installation: Designed for straightforward replacement

Temporary Access Codes: Issue up to 10 temporary codes with defined start and end dates for guests or contractors

Keys are non-returnable and eligible for exchange only

DoorKing 1877-010 Telephone Line Surge Suppressor gate-operator-part Verify compatibility with your modelTelephone Line Surge Suppressor for DoorKing Systems The DoorKing 1877 010 Telephone Line Surge Suppressor provides critical protection against voltage spikes and surges that can damage telephone entry and access control systems. Designed for use with DoorKing telephone based controllers, it safeguards communication lines by filtering and grounding transient surges caused by lightning or power fluctuations. Key Features Genuine DoorKing surge