A tamper switch keypad detects unauthorized opening, removal, or interference with the keypad housing and sends a contact signal to the access control system or alarm input. The system can then log the event, trigger an alert, or apply a programmed security response while normal credential entry continues to control the connected lock or device.

Consider the mounting location and available space, such as a narrow mullion or single-gang back box, along with exposure to weather, physical abuse, and the need for a vandal- and weather-resistant housing. Confirm the available 12 to 24 V AC or DC power, relay and tamper-output requirements, wiring to the controlled devices, and whether the keypad’s user capacity, temporary credentials, and fail-safe or fail-secure operation fit the installation.

Yes, tamper switch keypads can connect to compatible door locks, alarms, and other access control equipment through relay outputs and a dedicated tamper contact. Check the connected device’s voltage, current, relay, and input requirements, and configure the keypad for fail-safe or fail-secure operation when supported.

When selecting tamper switch keypads, compare the housing’s weather and vandal resistance, mounting format, built-in tamper output, and status indicators to match the installation environment. Also review card or proximity reader support, code length, user capacity, temporary visitor credentials, relay outputs, lockout or duress functions, and fail-safe or fail-secure operation.