Lockey Digital M210 Mechanical Keyless Entry Bump Proof Deadbolt Door Lock Satin Nickel Finish
by Digital Systems L2000SN
 |
Our Price: $94.92 Availability: Usually ships in 1-2 business days Category: Tools See more product details |
Product Details
Manufacturer: Digital Systems L2000SNModel: M210SC
Color: Satin Nickel
Product features:
- Mechanical keypad lock requires no electricity or batteries
- Weatherproof, ultra-secure lock can't be picked
- Lifetime mechanical warranty
Tools and Hardware Reviews of Lockey Digital M210 Mechanical Keyless Entry Bump Proof Deadbolt Door Lock Satin Nickel Finish
Customer Review: Unerstand the llimited security of these type devices
Summary: 1 Stars
The review "What more can you ask for?, October 5, 2009" wishes for the ability to use 6 "digit" key presses, implying that that would result in more security. This is not so.
Given a mechanical key press "digital" keypad:
10 different buttons ("0".."9"),
only able to press a button one time,
order of pressing buttons makes no difference;
then, the most unique combinations possible is 252.
Here is a quick table of all possibilities:
Count of Key presses = possible unique combinations
0 = 1
1 = 10
2 = 45
3 = 120
4 = 210
5 = 252
6 = 210
7 = 120
8 = 45
9 = 10
10 = 1
If you allow a burglar 15 seconds to try one of the possible 252 entry sequences, it will take only 1 hour and 3 minutes to run through all possible combination sequences. It is a trivial matter to write down a list of all possible combinations and just start keying them until the burglar hits the one that opens the lock. This kind of a lock is fine for a storage shed or office bathroom. I wouldn't want to use it on my house.
Look at this [...] for an easy to understand math on why this is so. This is not a defect of the product. ALL mechanical key press devices are like this. If you want keyless entry with thousands and thousands of possible combinations, you have to use a safe type rotary dial lock or an electronic push button type.
More Lockey Digital M210 Mechanical Keyless Entry Bump Proof Deadbolt Door Lock Satin Nickel Finish Customer Reviews:
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Description of Lockey Digital M210 Mechanical Keyless Entry Bump Proof Deadbolt Door Lock Satin Nickel Finish
Lockey Original Digital Door Locks L2000 M210 are bump proof, mechanical, keyless entry locks which do not require wires, batteries or electricity. These locks are perfect for new doors and easily replace existing hardware on your current doors. They provide keyless security, are easy to install and use, fit most doors and are weather resistant. Covers a standard 2 1/8" hole. Fits all doors 1 3/8" to 2". 2 3/8" - 2 3/4" adjustable deadbolt. For right or left handed doors-changeable handling. Combination can be changed. Dimensions: LOCK ONLY 4 7/8" X 1 7/16" X 1 3/4". TOTAL LOCK dimensions with trim plates 5 5/8" X 2 1/2". This is the same deadbolt as the Lockey 2000-different manufacturer packaging.Dead Bolts Tools
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