GeoVision - 24 Floors: Built-in 24 Relay Outputs to Support up to 24 Elevator Floors, Support up to 2 GV-Readers / GV-GF Fingerprint Readers through Network Connection and RS-485 Connection, Built-in Battery, CPU 32-bit ARM7TDMI.
Thumbnail Filmstrip of GeoVision GV-EV48-24 Images