With Biometric door locks you do not have the botheration of carrying keys. It recognizes a person from his/her finger print and opens the lock.
Proximity card based door locks open when a “registered” proximity ID card is brought
close to it.
Electronic Door latches can be remotely controlled through a pair of wires. Once a person is identified on a video-phone, he/she can be allowed to enter by pressing the “door open” key remotely to open an electronic latch.
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