There are several out there. At our hospital we use a card swipe system for some doors not unlike the sort often used in hotel rooms, and a push button key pad system which is electronic with a key pad exactly like a telephone. One hospital I worked at had a card system which sensed a card passed in front of the lower corner of the window in the door, I used to be able to trigger it by just passing my wallet with the car inside by the window.
There are two sorts of key pad system I am aware of in common domestic use, one is electronic and uses batteries, the other is mechanical so the button sequence operates tumblers mechanically. Many allow more than one code to be active simultaneously so you could, for example set a code for visitors and cancel it when they leave while continuing to use the family code. One caution though. If you use the same series of numbers for a long time the buttons begin to show wear which can reduce the options for a burglar to guess at the sequence. ----- Original Message ----- From: [email protected] To: [email protected] Sent: Thursday, April 22, 2010 2:58 PM Subject: Re: [BlindHandyMan] Keyless Entry Lock? Hi, Often times they are a keypad entry. Though they could be a swipe card or retinal recognizition. What does the commercial say? On Thu, 22 Apr 2010, Claudia wrote: > Hi, > > I've been hearing commercials lately, about a keyless entry lock? > What is this, and can anyone describe it for me? > Thanks. > > Claudia > > > > __________ Information from ESET Smart Security, version of virus signature database 5049 (20100422) __________ > > The message was checked by ESET Smart Security. > > http://www.eset.com > > > > [Non-text portions of this message have been removed] > > [Non-text portions of this message have been removed]
