Colosus Electronic Trusted Digital Keyless Door Lock (Gold, NDL319)

This is not like most door locks that have 2 screws that hold it to the door. This one has 3 screws that go through door plus you have to cut a hole to pass wire through. If i would have known this i would not have purchased. The programing instructions you have to read very closely as they have made them a little more complicated than it needs to be..

So easy to install, quality fitting. Once set up never misses a beat.

I just installed this lock; it took about half 45 minutes (watched installation video, read the user manual, drilled a hole, assembled the lock); It works well; the instruction to store the code is straight forward; the only thing it took a little more time is that you have to reprogram from 6 digitals code t 4 digitals code. Most digital door lock you can enter up to 8 digitals. you don't need to reprogram (this lock the factory set 6 digitals). The RF tag and remote work well; for the remote you need to be patient for few seconds for the lock to catch the signal and process it. I am happy with the lock so far since my first day of this lock, no unwanted events; let see the long run, how reliable it is? will let you know after two months.If you have door that has two locks; (upper and lower) you will need to install this digital lock upper hole and the deadbolt lock lower hole; otherwise you don't have enough vertical distance to install in the lower hole. The lock is built with strong material. LED number pad lid up very bright, big numbers. Very good value, $115 Amazon compared with other locks ($150--$195). Good quality and design. There is no website address for installation video on Amazon. I think manufacture or Amazon need to put the installation vedio website address . The address is on the manual in the box!.

Colosus Elongated Latch 70mm for Smart Door Lock Keypad/Touchscreen

This door lock system works very well it is difficult to program with very long numbers.