That's the most recent revision, and I believe the main difference from the earlier versions makes almost no difference to you.
Medeco has to invent a new feature periodically in order to retain patent protection. It's usually a relatively minor improvement. In this case it's what they're calling a "reciprocal slider"
There are PDF files on Medeco's website which describe the design in some detail, but I don't think you should bother unless you're really curious about the complexities of a high-security lock cylinder.
"This house guarded by shotgun three nights per week. You guess which three nights."
Out of curiosity, what is the difference between Medeco and Schlage locks? I have Schlage on my doors here, and don't think I have seen Medeco on anything around here. Is Medeco better for some reason, or is it just a case of what's available in stores is what's installed on the door?
Medeco locks are higher security than Schlage... That means that they will resist picking and drilling much longer than a Schalge (this applies to any lock with the UL-437 rating)...
Before you get all excited and think you need to run out and get these wonderful yet expensive locks for your home, consider for a second the fact that your home has windows and most would be thieves if unable to break down your door will break a windown to get in... Also, for the most part, houses just aren't built with beefy enough framing inside the walls at the door openings, so regardless of what type of lock you have installed in the door it can be smashed in by someone who knows what they are doing...
If you want to ensure the security of a home or business, then some kind of an alarm system is required... And don't put up those dumb-ass stickers... Most people these days have learned that the more visual the advertisizing, the less likely that there is anything to back it up... Also, if you have an alarm system, have the keypads put in locations that aren't immediately visible from the exterior doorways, and don't let the alarm company install the control box inside the front hall closet, as that is where most homes with alarms have them installed, be more creative and put it in some remote corner of the basement or something where it will take some time for its location to be discovered... (That time allows for the central station to call the police, and for the police to get there... Because if the alarms controller can be located in that 30 to 60 seconds entry delay then the smarter burgalrs know how to disable them... And contrary to popular myth, not every alarm system has back-ups to back-ups to deal with something like that... Only the REALLY EXPENSIVE ones do...
Evan, ~~formerly a maintenance man, now a college student...
Schlage has a 'similar' available, BTW.. but the consumers are usually wasting the money, due to the construction of the door and jamb.. or other things.. (think bank vault door, on the FRONT of the house, and 1 layer of sheet rock on the REST)
which is easily "opened" with a box cutter. or use a garden hose to soften it up and just push it apart. American housing, nothing but shit but boy look at them jack up the prices!!
Key control (how easy would it be for someone to duplicate your key)
Pick resistance (how easy would it be for them to open the lock without a key and without making a lot of noise or leaving a lot of evidence)
Physical resistance (how easy would it be for them to brute-force the lock -- this one of course gets into the question of how secure the rest of the opening, and the structure, may be).
Please refer back to the question, i did not ask about key control, etc. i asked about quality of the lock. For example, is it as well made as Medeco, as strong?
Notwithstanding the answers below, Medeco and a version of Schlage called Primus as well as a number of other brands offer three things that the standard pin tumbler cylinder does not.
Physical resistance to attack. Specifically many parts in a cylinder assembly have hardened drill resistant features.
Resistance to covert attack. Specifically pick and/or impressioning resistance for a certain time limit by an experienced individual.
Resistance to surreptitious attack. Specifically key control. Blanks are available only to authorized outlets and they will cut them only upon proper authorization. Aftermarket blanks are not available.
While items 1 and 2 may not be warranted or even desired in a residential application, item 3 is important. If you have ever valet parked your car you could have been at risk without a key that protects against unauthorized duplication. Especially if you carry the title, registration or insurance card in the vehicle. All of them have the address where the house key can be used.
High security is better, low security is almost as bad as no security, maybe worse because the low security gives you a piece of m>
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