M5 is the first intelligent electronic cam lock independently developed by MAKE. The appearance of the product is the same as that of ordinary cam lock. The electronic key can unlock the lock without additional wiring.  You only need to install the battery on the electronic key to use the lock.

The lock is equipped with a three-level key management system for convenient management and use.
website：https://www.makekeylock.com/atm-lock/Intelligent-electronic-cam-lock--M5.html