The most versatile keypad yet from Carpinteria, Calif.-based Essex Electronics Inc., the K1 Series 12 Pad 3x4 is a virtually indestructible, multi format keypad capable of providing either standalone access control or one of several industry standard outputs. Easily configured in the field, the K1 Series offers a migration path from a 500-user standalone access control system to an OEM-compatible keypad reader.