Medeco® electronic products complement existing mechanical keying systems with the flexibility of both mechanical keys and electronic credentials. Medeco Proximity includes 125 kHz 26 bit HID technology to the head of the dual function key that can be used in existing systems. SiteKey provides the simplicity of a single key that can be upgraded with electronics by simply exchanging the head of the key.Sitekey adds power to a system by adding instant rekeying, complete audit records and time control.