How to install a card door lock in a hotel? Is it useful to use a card to open the door?

1. Installation involves hollowing out, and you need special tools to install it yourself. If you don’t have these tools or are not very skilled, it is best not to install it yourself, because the hotel door locks are almost useless. Can be effectively locked.

2. Regarding the door card, there are currently two types: those with ic chip and those without ic chip. If it is a door card with ic chip, it must be a special door card. Other cards are not universal. of. Almost anything without an ic chip can be used universally, as long as it is magnetic, it can draw power!