12-24VDC access control keypads receive power from a compatible 12-24VDC supply and use Form C relay outputs to switch power to electric locks, strikes, or other locking hardware. Door sensors and request-to-exit devices connect to the keypad’s sensor and egress inputs, while auxiliary outputs, tamper outputs, and doorbell connections can link the keypad with other access control components when supported by the specific model.

12-24VDC access control keypads support capacities ranging from 1,000 to 1,100 users, with some dual-output models supporting up to 10 or 100 additional users and as many as 50 temporary visitor codes. Available access modes include PIN codes, proximity cards, or code-and-card combinations, depending on the keypad configuration, with some outputs also supporting doorbell operation.

Indoor 12-24VDC access control keypads are designed for protected spaces and may support surface or flush mounting, backlit keys, and straightforward keypad programming. Weatherproof models use sealed or rugged aluminum and stainless-steel housings, with IP65 or IP66 ratings, to support outdoor installations exposed to moisture, dust, and physical contact.

Compare supported credentials, such as PIN codes, proximity cards, temporary visitor codes, and duress codes, along with user capacity, code length, and whether access modes can be assigned by output or user. Also review the number and type of relay outputs, programmable activation or toggle timing, input connections for egress and door sensors, voltage range, weather and vandal resistance, mounting style, backlit keys, and tamper detection.