Not sure who gets the credit for the first part but, as with most things Amazon painless transaction, came fast, no surprises.
Ok on to the lock. It is installed on an outside door, front of a house, under a deep porch it does not get direct sunlight or snow or rain hitting it.... -20c to +20C. temps but that's all.
PROs - nice finish, looks really cool on your door, easy to install, instructions are clear, easy programming.
Before I start to wine (and I'm going too) I / we are very familiar with bio metric (fingerprint) scanners we use them in our companies for door locks and time keeping. I have trained dozens of employees on them i know the importance of finger placement, pressure, alignment, contaminants bla bla bla.. some people they never work on no matter what you do. Ok ...get the cheese..:-)
I taught it all the fingers on both hands of 5 people 3 times (yep... 150 fingers)
CONs - this unit is effected by change in temperature / humidity. training it again on different days didn't help.
on its best performance it will recognize after about 5 tries, on its worst days, not at all. It is temperamental at best.
The number keys are not illuminated or well marked and there are only 4 digit keys 1-4 . The shortest code you can use is 8 digits.Key override works fine, they claim the key is "laser cut" ...BS.. apparently they don't know how a laser works. Anyway the key is a pain to duplicate.If you are buying this device to get quick easy access, don't waste your money, more often than not you will find your self trying to pry the magnetic cover off the key hole cover to get your key in. Way too much money for mediocre performance. not many to choose from, only available online. Would that suggest stores don't want to carry them and deal with high rate of returns. IMHO