Digital Door Lock M210 Mechanical Keyless Deadbolt Double Combination, Satin Nickel

This is a great lock! I have owned two. The first lasted many years (and I have a large family, so it was used constantly), and was installed by a locksmith. The second is a replacement. The install is difficult. I had the advantage of "going to school" on the first install (I paid close attention as I took the first one off). You can expect many years from one of these.

This lock is great. I love that I don’t have to connect to any apps or change any batteries.

Precision easy to operate lock. I purchased to replace the doorknob latch and separate deadbolt installed on a steel outdoor gate. "Secret" combination in box did not match settings on either side of lock and inside and outside did not match each other. Required an extra hour of messing about to make the lock work properly. Kit included extra "pins" if you want another digit or two. With this little 12 button lock; - 4 button combination creates 495 possible choices. - 5 buttons creates 792 possible. - 6 buttons creates 924 possible. - 7 buttons back to 792, same as 5. This surprisingly small 12 button lock will not cover both holes of a conventional latch + deadbolt installation. The larger 14 button version may be a better choice to cover more in the door + will provide 4X the possible combinations. Installation is not elegant. Old deadbolt holes were covered temporarily with perforated steel plates from hardware store. Will replace with properly sized 1/8" stainless or aluminum backing plate when time permits.

Product is good but expensive... I figured I'd pay the higher price assuming it was a superior lock sequence design. I felt disappointed when I learned that the combination is not sequence dependent. Combination 1-2-3-4 is the same as 4-3-2-1 for instance, both work. Other than that, installation went smoothly and the look and operation of the lock is very good. The width of my gate door was right at the limit... so I could have used another 1/4 of an inch on the "long" bolts for my door. I got around the problem by not using the rubber weather guard on one side of the lock.

I love this lock. I bought the kind that has numeric key pads on both sides for my backyard gate. It is great and well worth the price. If you have ever installed a lock on a door with existing holes, you can install this lock in minutes. This lock is smaller than it looks on a website, but when you hold it feels very solid and heavy duty. It is made from thick solid steel except for black rubber pads. Rubber parts are thin gaskets between the door and the lock and , I believe are mostly decorative. Overall construction is high quality and it performs great. It comes with easy to follow instructions tools and parts for changing combination or switching it from left-hand to right hand door. I performed both, it took me minutes and was easy for me. I love the fact that it is weather-proof and is 100% mechanical. No batteries or power required. If you live in colder climates you should know that batteries may not work in 20 degrees or below weather.

Easy to install in place of existing keyed deadbolt. Works very well.

Don't Even Waste your time. Install takes wayyyyyyy to long, setting the combo is hard. I wanted to use this for an outside gate but I came up with a better idea. Get a double lock deadbolt, and put a lockbox on the wall with a combo. This lock is a piece of junk and cheap. If it was under 50 bucks, I would consider giving 2 stars.

We were looking for a keyless lock for the gate to our back yard and the locksmith recommended this lock. It seems to be the perfect solution since it's not electronic and will be exposed to the desert sun every day. Easy to operate and very secure.