Very good the lock! It takes a little bit of work to install, because my door is made of metal, so it is narrower, but I made an adaptation with acrylic with the mold going around the lock to make a thicken. arrived in 3 days and no tax sent from the Brazil deposit. An observation, it opens by the app via internet, but the user has to type 9 # to ask for a authorization, because it hibernates and does not stay all the time connected on the Internet to save battery