This Weiser security system has a convenient, keyless operation which lets you open the door with a digital user code. Therefore, you can say goodbye to bulky keyrings! The responsive touchscreen is visible day and night, and it has the SecureScreen(TM) technology which prevents anyone from guessing the code through fingerprint detection. In addition, a built-in alarm emits a sound signal when 3 consecutive incorrect codes are entered on the screen, the latter becoming temporarily blocked. Up to 30 custom user codes can be created and a single-touch button is used to lock the door. Finally, this deadbolt has a tamper-proof inner cover, preventing unauthorized access to programming buttons.