SL-100W 4-Dial Dual Combination Lock Box, Durable Combo Lock for Outdoor Storage & Home Improvement, Door Locker Locks with Side Key Door, 8.7 x 1.6 x 5.6 Inches, Black

Bought this for my grandson and his new house. He loves it. Thank you!!!

I bought this lock box to hang on the door knob to my apartment to contain the key to the apartment. I want it to be used in an emergency by first responders. My apartment complex has an office that is open during business hours. On weekends and evening it is manned by a person who may or may not be responsive to an emergency. My concern was that I might be inside and hurt or incapacitated but able to summon help by phone. How does the first responder get into my apartment. I should be able to tell them the code or I use an app called 5Star where the person who answers the phone has my location information in a database. This item can be a big help to older or handicapped people who may require help.The box seems to be working well for me. It has two locks. One opens the shackle that hangs the box on my door knob. The other opens the box with my key. The person trying to get in will only need to open the key box.. I was pleased the lock box hangs on the door knob, cannot be removed without destroying the door knob, and does not interfere with opening and closing the door. I like the blue color. It is not too heavy.I am not sure how waterproof it is as I have it inside anyway.

I had to update my review from a three star to a one star. The last 3 locks have bought have broken within just a month. The numbers stop moving and either the flap won’t close or won’t open. It was cheap enough when I only had to replace it once a year, but now that it is breaking every few months, it is no longer worth it.Original review: This is one of the only lockboxes I have found where someone cannot change the combination after opening the lock box to get the key. For that I love it. Unfortunately the quality is horrible and I have had to replace it every 4 to 9 months because it breaks either not opening and not able to get the keys out or not locking And leaving the keys accessible to anyone. I continue to buy it because it is not that expensive and again, it is the only lock I have found that cannot be changed by anyone who’s able to open the lock box with the code

I recently needed to purchase three lock boxes, and relied strongly on the reviews to make my selection. I am very happy to have chosen this one.Using the instructions provided, I found it very easy to determine the shackle combination from which the compartment door combination is automatically set. I started by writing my desired door combo on the instruction sheet beneath the decoder chart, which then made it easy to derive the shackle combination. Then I followed the instructions to set the shackle combo, et voila! the door combo was automatically set for me! It took about three minutes.The key compartment is a cylinder sized for about five keys. You will need to look elsewhere for one that can hold a key card. The compartment has a little post in it that begs to act as an anchor for a short keychain to encourage the user to return the key to the compartment. However, the gap between the post and the wall does not allow you to use beaded chain for this purpose, although we rigged a way to make it work anyway by using a twist tie and a small split ring to attach the beaded chain. The manufacturer does not suggest using the post for this purpose, so I would call it a bonus feature outside of their specs.I do not yet have any feedback on durability over time, but can say that the fit and finish appear to be high quality. I will be interested to see how it handles freezing rain, etc. over time. The shackle is protected with vinyl, and the reverse has a little plastic pad to prevent it from marring your door. I can't tell whether moisture will be able to invade the lock mechanism or key compartment.In closing, I recommend that you try this lockbox so long as you don't need one with a large compartment. If you look at the photo you can gauge its size relative to the size of a typical key.

This box is strong and nice looking.One feature I liked especially are the combination dials. They are white numbering on a black ring so the white numbers stand out well against the black background. A problem with some of these combination dials.There is a soft rubbery bumper pad on the back to protect paint on doors and the shackle is also coated with a soft plastic or rubbery sleeve.The box compartment for the keys is smaller than a lot of these boxes so you may not get as many keys in it. But if you are just putting a couple of house keys, or so, inside, it should be fine. (You may get a few more in if the keys are not too thick.)There are two combinations required.The combination to open the key door is different from the combination to unlock the shackle to hang it on something.You are able to choose either one of these two, and the unit sets the other one for you. So you can set the key door combination to a number you will remember easily but that leaves a different number for the shackle which is determined by what you set for the door. So that will probably be a rote memory issue for you.Therein lies the rub.Be sure to read the directions very,very carefully and be sure not to lock it onto to anything or put any keys inside until you fully understand how the combinations are set.I can't say this more urgently, it isn't for the mentally challenged, it takes some figuring out. (You'll need to plan to sit down for a little while and not rush into it and wonder what the combination turned out to be.)If you are in your elderly configuration, maybe this isn't the lockbox for you. But if your reasoning abilities are good, this is a fine lock and is less bulky than more traditional lockboxes.The problem is the confusion that arises in setting the two combinations. If you want to set the door combination to a number you remember you have set it in conjunction with the shackle combination. For example, the door combination will be 3 digits higher than the shackle combination. If the door combination is to be 555 the shackle is 222. You set the shackle combination first, (if I understand it.) so you write down the door combination and subtract 3 when setting the shackle.Complicated to write about, you'll get it when you get the lock and instructions which has a little table to help.To further complicate the set up is that in order to set the combinations, you have to turn a "setting screw" on the side of the unit to free the lock to set combinations. But if you forget to return the "setting screw" back to its original position, and try scrambling the combination, you are really resetting the combination to the scrambled number, until some day you remember to turn the "setting screw" to complete the process.So, while your are setting and figuring out the setting process, keep a pad of paper next you and write every combination you dial so if you forget to return the "setting screw" back to normal, you will have a list of possible settings on the pad that may open the lock and let you start again. Can't tell you how careful to be until it is set up. Don't put your keys inside or lock to a door until you have all this working properly. Then write down your combinations somewhere. (I put the shackle combination inside the key storage compartment figuring I may remember the combination to the box, but would probably forget the shackle combination.The reason for the two combinations, is actually not a bad idea. You can give the key compartment combination to some one and they can get the keys out of the box, but they cannot remove and misplace the lockbox without knowing the shackle combination also.Clear as mud! It is important that you read instructions and play with it for awhile to be sure you get it.I didn't give 5 stars because of the complications with setting the combinations in the beginning. You should only have this issue once unless you want a new combination.Good box, however.Steve